15 files changed, 8 insertions, 2358 deletions

diff --git a/node_modules/xss/dist/xss.js b/js/lib/xss.js
index 9583a6b..bddbdd8 100644
--- a/node_modules/xss/dist/xss.js
+++ b/js/lib/xss.js
@@ -151,15 +151,19 @@ function safeAttrValue(tag, name, value, cssFilter) {
 
   if (name === "href" || name === "src") {
     // filter `href` and `src` attribute
-    // only allow the value that starts with `http://` | `https://` | `mailto:` | `/` | `#`
+    // only allow the value that starts with `http://` | `https://` | `mailto:` | `/` | `#` | and others
     value = _.trim(value);
     if (value === "#") return "#";
     if (
       !(
         value.substr(0, 7) === "http://" ||
         value.substr(0, 8) === "https://" ||
+        value.substr(0, 6) === "ftp://" ||
         value.substr(0, 7) === "mailto:" ||
         value.substr(0, 4) === "tel:" ||
+        value.substr(0, 11) === "data:image/" ||
+        value.substr(0, 2) === "./" ||
+        value.substr(0, 3) === "../" ||
         value[0] === "#" ||
         value[0] === "/"
       )
@@ -504,7 +508,7 @@ function isClosing(html) {
  * @return {String}
  */
 function parseTag(html, onTag, escapeHtml) {
-  "user strict";
+  "use strict";
 
   var rethtml = "";
   var lastPos = 0;
@@ -574,7 +578,7 @@ var REGEXP_ILLEGAL_ATTR_NAME = /[^a-zA-Z0-9_:\.\-]/gim;
  * @return {String}
  */
 function parseAttr(html, onAttr) {
-  "user strict";
+  "use strict";
 
   var lastPos = 0;
   var retAttrs = [];
@@ -1607,3 +1611,4 @@ module.exports = {
 };
 
 },{}]},{},[2]);
+
diff --git a/node_modules/xss/LICENSE b/node_modules/xss/LICENSE
deleted file mode 100644
index f840eb4..0000000
--- a/node_modules/xss/LICENSE
+++ /dev/null
@@ -1,23 +0,0 @@
-Copyright (c) 2012-2018 Zongmin Lei(雷宗民) <leizongmin@gmail.com>
-http://ucdok.com
-
-The MIT License
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/node_modules/xss/README.md b/node_modules/xss/README.md
deleted file mode 100644
index 4f202f1..0000000
--- a/node_modules/xss/README.md
+++ /dev/null
@@ -1,499 +0,0 @@
-[![NPM version][npm-image]][npm-url]
-[![build status][travis-image]][travis-url]
-[![Test coverage][coveralls-image]][coveralls-url]
-[![David deps][david-image]][david-url]
-[![node version][node-image]][node-url]
-[![npm download][download-image]][download-url]
-[![npm license][license-image]][download-url]
-
-[npm-image]: https://img.shields.io/npm/v/xss.svg?style=flat-square
-[npm-url]: https://npmjs.org/package/xss
-[travis-image]: https://img.shields.io/travis/leizongmin/js-xss.svg?style=flat-square
-[travis-url]: https://travis-ci.org/leizongmin/js-xss
-[coveralls-image]: https://img.shields.io/coveralls/leizongmin/js-xss.svg?style=flat-square
-[coveralls-url]: https://coveralls.io/r/leizongmin/js-xss?branch=master
-[david-image]: https://img.shields.io/david/leizongmin/js-xss.svg?style=flat-square
-[david-url]: https://david-dm.org/leizongmin/js-xss
-[node-image]: https://img.shields.io/badge/node.js-%3E=_0.10-green.svg?style=flat-square
-[node-url]: http://nodejs.org/download/
-[download-image]: https://img.shields.io/npm/dm/xss.svg?style=flat-square
-[download-url]: https://npmjs.org/package/xss
-[license-image]: https://img.shields.io/npm/l/xss.svg
-
-# Sanitize untrusted HTML (to prevent XSS) with a configuration specified by a Whitelist.
-
-[![Greenkeeper badge](https://badges.greenkeeper.io/leizongmin/js-xss.svg)](https://greenkeeper.io/)
-
-![xss](https://nodei.co/npm/xss.png?downloads=true&stars=true)
-
----
-
-`xss` is a module used to filter input from users to prevent XSS attacks.
-([What is XSS attack?](http://en.wikipedia.org/wiki/Cross-site_scripting))
-
-**Project Homepage:** http://jsxss.com
-
-**Try Online:** http://jsxss.com/en/try.html
-
-**[中文版文档](https://github.com/leizongmin/js-xss/blob/master/README.zh.md)**
-
----
-
-## Features
-
-* Specifies HTML tags and their attributes allowed with whitelist
-* Handle any tags or attributes using custom function.
-
-## Reference
-
-* [XSS Filter Evasion Cheat Sheet](https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet)
-* [Data URI scheme](http://en.wikipedia.org/wiki/Data_URI_scheme)
-* [XSS with Data URI Scheme](http://hi.baidu.com/badzzzz/item/bdbafe83144619c199255f7b)
-
-## Benchmark (for references only)
-
-* the xss module: 8.2 MB/s
-* `xss()` function from module `validator@0.3.7`: 4.4 MB/s
-
-For test code please refer to `benchmark` directory.
-
-## They are using xss module
-
-* **nodeclub** - A Node.js bbs using MongoDB - https://github.com/cnodejs/nodeclub
-* **cnpmjs.org** - Private npm registry and web for Enterprise - https://github.com/cnpm/cnpmjs.org
-
-## Install
-
-### NPM
-
-```bash
-npm install xss
-```
-
-### Bower
-
-```bash
-bower install xss
-```
-
-Or
-
-```bash
-bower install https://github.com/leizongmin/js-xss.git
-```
-
-## Usages
-
-### On Node.js
-
-```javascript
-var xss = require("xss");
-var html = xss('<script>alert("xss");</script>');
-console.log(html);
-```
-
-### On Browser
-
-Shim mode (reference file `test/test.html`):
-
-```html
-<script src="https://rawgit.com/leizongmin/js-xss/master/dist/xss.js"></script>
-<script>
-// apply function filterXSS in the same way
-var html = filterXSS('<script>alert("xss");</scr' + 'ipt>');
-alert(html);
-</script>
-```
-
-AMD mode - shim:
-
-```html
-<script>
-require.config({
-  baseUrl: './',
-  paths: {
-    xss: 'https://rawgit.com/leizongmin/js-xss/master/dist/xss.js'
-  },
-  shim: {
-    xss: {exports: 'filterXSS'}
-  }
-})
-require(['xss'], function (xss) {
-  var html = xss('<script>alert("xss");</scr' + 'ipt>');
-  alert(html);
-});
-</script>
-```
-
-**Notes: please don't use the URL https://rawgit.com/leizongmin/js-xss/master/dist/xss.js in production environment.**
-
-## Command Line Tool
-
-### Process File
-
-You can use the xss command line tool to process a file. Usage:
-
-```bash
-xss -i <input_file> -o <output_file>
-```
-
-Example:
-
-```bash
-xss -i origin.html -o target.html
-```
-
-### Active Test
-
-Run the following command, them you can type HTML
-code in the command-line, and check the filtered output:
-
-```bash
-xss -t
-```
-
-For more details, please run `$ xss -h` to see it.
-
-## Custom filter rules
-
-When using the `xss()` function, the second parameter could be used to specify
-custom rules:
-
-```javascript
-options = {}; // Custom rules
-html = xss('<script>alert("xss");</script>', options);
-```
-
-To avoid passing `options` every time, you can also do it in a faster way by
-creating a `FilterXSS` instance:
-
-```javascript
-options = {}; // Custom rules
-myxss = new xss.FilterXSS(options);
-// then apply myxss.process()
-html = myxss.process('<script>alert("xss");</script>');
-```
-
-Details of parameters in `options` would be described below.
-
-### Whitelist
-
-By specifying a `whiteList`, e.g. `{ 'tagName': [ 'attr-1', 'attr-2' ] }`. Tags
-and attributes not in the whitelist would be filter out. For example:
-
-```javascript
-// only tag a and its attributes href, title, target are allowed
-var options = {
-  whiteList: {
-    a: ["href", "title", "target"]
-  }
-};
-// With the configuration specified above, the following HTML:
-// <a href="#" onclick="hello()"><i>Hello</i></a>
-// would become:
-// <a href="#">Hello</a>
-```
-
-For the default whitelist, please refer `xss.whiteList`.
-
-### Customize the handler function for matched tags
-
-By specifying the handler function with `onTag`:
-
-```javascript
-function onTag(tag, html, options) {
-  // tag is the name of current tag, e.g. 'a' for tag <a>
-  // html is the HTML of this tag, e.g. '<a>' for tag <a>
-  // options is some addition informations:
-  //   isWhite    boolean, whether the tag is in whitelist
-  //   isClosing  boolean, whether the tag is a closing tag, e.g. true for </a>
-  //   position        integer, the position of the tag in output result
-  //   sourcePosition  integer, the position of the tag in input HTML source
-  // If a string is returned, the current tag would be replaced with the string
-  // If return nothing, the default measure would be taken:
-  //   If in whitelist: filter attributes using onTagAttr, as described below
-  //   If not in whitelist: handle by onIgnoreTag, as described below
-}
-```
-
-### Customize the handler function for attributes of matched tags
-
-By specifying the handler function with `onTagAttr`:
-
-```javascript
-function onTagAttr(tag, name, value, isWhiteAttr) {
-  // tag is the name of current tag, e.g. 'a' for tag <a>
-  // name is the name of current attribute, e.g. 'href' for href="#"
-  // isWhiteAttr whether the attribute is in whitelist
-  // If a string is returned, the attribute would be replaced with the string
-  // If return nothing, the default measure would be taken:
-  //   If in whitelist: filter the value using safeAttrValue as described below
-  //   If not in whitelist: handle by onIgnoreTagAttr, as described below
-}
-```
-
-### Customize the handler function for tags not in the whitelist
-
-By specifying the handler function with `onIgnoreTag`:
-
-```javascript
-function onIgnoreTag(tag, html, options) {
-  // Parameters are the same with onTag
-  // If a string is returned, the tag would be replaced with the string
-  // If return nothing, the default measure would be taken (specifies using
-  // escape, as described below)
-}
-```
-
-### Customize the handler function for attributes not in the whitelist
-
-By specifying the handler function with `onIgnoreTagAttr`:
-
-```javascript
-function onIgnoreTagAttr(tag, name, value, isWhiteAttr) {
-  // Parameters are the same with onTagAttr
-  // If a string is returned, the value would be replaced with this string
-  // If return nothing, then keep default (remove the attribute)
-}
-```
-
-### Customize escaping function for HTML
-
-By specifying the handler function with `escapeHtml`. Following is the default
-function **(Modification is not recommended)**:
-
-```javascript
-function escapeHtml(html) {
-  return html.replace(/</g, "&lt;").replace(/>/g, "&gt;");
-}
-```
-
-### Customize escaping function for value of attributes
-
-By specifying the handler function with `safeAttrValue`:
-
-```javascript
-function safeAttrValue(tag, name, value) {
-  // Parameters are the same with onTagAttr (without options)
-  // Return the value as a string
-}
-```
-
-### Customize CSS filter
-
-If you allow the attribute `style`, the value will be processed by [cssfilter](https://github.com/leizongmin/js-css-filter) module. The cssfilter module includes a default css whitelist. You can specify the options for cssfilter module like this:
-
-```javascript
-myxss = new xss.FilterXSS({
-  css: {
-    whiteList: {
-      position: /^fixed|relative$/,
-      top: true,
-      left: true
-    }
-  }
-});
-html = myxss.process('<script>alert("xss");</script>');
-```
-
-If you don't want to filter out the `style` content, just specify `false` to the `css` option:
-
-```javascript
-myxss = new xss.FilterXSS({
-  css: false
-});
-```
-
-For more help, please see https://github.com/leizongmin/js-css-filter
-
-### Quick Start
-
-#### Filter out tags not in the whitelist
-
-By using `stripIgnoreTag` parameter:
-
-* `true` filter out tags not in the whitelist
-* `false`: by default: escape the tag using configured `escape` function
-
-Example:
-
-If `stripIgnoreTag = true` is set, the following code:
-
-```html
-code:<script>alert(/xss/);</script>
-```
-
-would output filtered:
-
-```html
-code:alert(/xss/);
-```
-
-#### Filter out tags and tag bodies not in the whitelist
-
-By using `stripIgnoreTagBody` parameter:
-
-* `false|null|undefined` by default: do nothing
-* `'*'|true`: filter out all tags not in the whitelist
-* `['tag1', 'tag2']`: filter out only specified tags not in the whitelist
-
-Example:
-
-If `stripIgnoreTagBody = ['script']` is set, the following code:
-
-```html
-code:<script>alert(/xss/);</script>
-```
-
-would output filtered:
-
-```html
-code:
-```
-
-#### Filter out HTML comments
-
-By using `allowCommentTag` parameter:
-
-* `true`: do nothing
-* `false` by default: filter out HTML comments
-
-Example:
-
-If `allowCommentTag = false` is set, the following code:
-
-```html
-code:<!-- something --> END
-```
-
-would output filtered:
-
-```html
-code: END
-```
-
-## Examples
-
-### Allow attributes of whitelist tags start with `data-`
-
-```javascript
-var source = '<div a="1" b="2" data-a="3" data-b="4">hello</div>';
-var html = xss(source, {
-  onIgnoreTagAttr: function(tag, name, value, isWhiteAttr) {
-    if (name.substr(0, 5) === "data-") {
-      // escape its value using built-in escapeAttrValue function
-      return name + '="' + xss.escapeAttrValue(value) + '"';
-    }
-  }
-});
-
-console.log("%s\nconvert to:\n%s", source, html);
-```
-
-Result:
-
-```html
-<div a="1" b="2" data-a="3" data-b="4">hello</div>
-convert to:
-<div data-a="3" data-b="4">hello</div>
-```
-
-### Allow tags start with `x-`
-
-```javascript
-var source = "<x><x-1>he<x-2 checked></x-2>wwww</x-1><a>";
-var html = xss(source, {
-  onIgnoreTag: function(tag, html, options) {
-    if (tag.substr(0, 2) === "x-") {
-      // do not filter its attributes
-      return html;
-    }
-  }
-});
-
-console.log("%s\nconvert to:\n%s", source, html);
-```
-
-Result:
-
-```html
-<x><x-1>he<x-2 checked></x-2>wwww</x-1><a>
-convert to:
-&lt;x&gt;<x-1>he<x-2 checked></x-2>wwww</x-1><a>
-```
-
-### Parse images in HTML
-
-```javascript
-var source =
-  '<img src="img1">a<img src="img2">b<img src="img3">c<img src="img4">d';
-var list = [];
-var html = xss(source, {
-  onTagAttr: function(tag, name, value, isWhiteAttr) {
-    if (tag === "img" && name === "src") {
-      // Use the built-in friendlyAttrValue function to escape attribute
-      // values. It supports converting entity tags such as &lt; to printable
-      // characters such as <
-      list.push(xss.friendlyAttrValue(value));
-    }
-    // Return nothing, means keep the default handling measure
-  }
-});
-
-console.log("image list:\n%s", list.join(", "));
-```
-
-Result:
-
-```html
-image list:
-img1, img2, img3, img4
-```
-
-### Filter out HTML tags (keeps only plain text)
-
-```javascript
-var source = "<strong>hello</strong><script>alert(/xss/);</script>end";
-var html = xss(source, {
-  whiteList: [], // empty, means filter out all tags
-  stripIgnoreTag: true, // filter out all HTML not in the whilelist
-  stripIgnoreTagBody: ["script"] // the script tag is a special case, we need
-  // to filter out its content
-});
-
-console.log("text: %s", html);
-```
-
-Result:
-
-```html
-text: helloend
-```
-
-## License
-
-```text
-Copyright (c) 2012-2018 Zongmin Lei(雷宗民) <leizongmin@gmail.com>
-http://ucdok.com
-
-The MIT License
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-```
diff --git a/node_modules/xss/README.zh.md b/node_modules/xss/README.zh.md
deleted file mode 100644
index 2483d4d..0000000
--- a/node_modules/xss/README.zh.md
+++ /dev/null
@@ -1,485 +0,0 @@
-[![NPM version][npm-image]][npm-url]
-[![build status][travis-image]][travis-url]
-[![Test coverage][coveralls-image]][coveralls-url]
-[![David deps][david-image]][david-url]
-[![node version][node-image]][node-url]
-[![npm download][download-image]][download-url]
-[![npm license][license-image]][download-url]
-
-[npm-image]: https://img.shields.io/npm/v/xss.svg?style=flat-square
-[npm-url]: https://npmjs.org/package/xss
-[travis-image]: https://img.shields.io/travis/leizongmin/js-xss.svg?style=flat-square
-[travis-url]: https://travis-ci.org/leizongmin/js-xss
-[coveralls-image]: https://img.shields.io/coveralls/leizongmin/js-xss.svg?style=flat-square
-[coveralls-url]: https://coveralls.io/r/leizongmin/js-xss?branch=master
-[david-image]: https://img.shields.io/david/leizongmin/js-xss.svg?style=flat-square
-[david-url]: https://david-dm.org/leizongmin/js-xss
-[node-image]: https://img.shields.io/badge/node.js-%3E=_0.10-green.svg?style=flat-square
-[node-url]: http://nodejs.org/download/
-[download-image]: https://img.shields.io/npm/dm/xss.svg?style=flat-square
-[download-url]: https://npmjs.org/package/xss
-[license-image]: https://img.shields.io/npm/l/xss.svg
-
-# 根据白名单过滤 HTML(防止 XSS 攻击)
-
-![xss](https://nodei.co/npm/xss.png?downloads=true&stars=true)
-
----
-
-`xss`是一个用于对用户输入的内容进行过滤，以避免遭受 XSS 攻击的模块（[什么是 XSS 攻击？](http://baike.baidu.com/view/2161269.htm)）。主要用于论坛、博客、网上商店等等一些可允许用户录入页面排版、格式控制相关的 HTML 的场景，`xss`模块通过白名单来控制允许的标签及相关的标签属性，另外还提供了一系列的接口以便用户扩展，比其他同类模块更为灵活。
-
-**项目主页：** http://jsxss.com
-
-**在线测试：** http://jsxss.com/zh/try.html
-
----
-
-## 特性
-
-* 白名单控制允许的 HTML 标签及各标签的属性
-* 通过自定义处理函数，可对任意标签及其属性进行处理
-
-## 参考资料
-
-* [XSS 与字符编码的那些事儿 ---科普文](http://drops.wooyun.org/tips/689)
-* [腾讯实例教程：那些年我们一起学 XSS](http://www.wooyun.org/whitehats/%E5%BF%83%E4%BC%A4%E7%9A%84%E7%98%A6%E5%AD%90)
-* [mXSS 攻击的成因及常见种类](http://drops.wooyun.org/tips/956)
-* [XSS Filter Evasion Cheat Sheet](https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet)
-* [Data URI scheme](http://en.wikipedia.org/wiki/Data_URI_scheme)
-* [XSS with Data URI Scheme](http://hi.baidu.com/badzzzz/item/bdbafe83144619c199255f7b)
-
-## 性能（仅作参考）
-
-* xss 模块：8.2 MB/s
-* validator@0.3.7 模块的 xss()函数：4.4 MB/s
-
-测试代码参考 benchmark 目录
-
-## 安装
-
-### NPM
-
-```bash
-npm install xss
-```
-
-### Bower
-
-```bash
-bower install xss
-```
-
-或者
-
-```bash
-bower install https://github.com/leizongmin/js-xss.git
-```
-
-## 使用方法
-
-### 在 Node.js 中使用
-
-```javascript
-var xss = require("xss");
-var html = xss('<script>alert("xss");</script>');
-console.log(html);
-```
-
-### 在浏览器端使用
-
-Shim 模式（参考文件 `test/test.html`）:
-
-```html
-<script src="https://rawgit.com/leizongmin/js-xss/master/dist/xss.js"></script>
-<script>
-// 使用函数名 filterXSS，用法一样
-var html = filterXSS('<script>alert("xss");</scr' + 'ipt>');
-alert(html);
-</script>
-```
-
-AMD 模式（参考文件 `test/test_amd.html`）:
-
-```html
-<script>
-require.config({
-  baseUrl: './',
-  paths: {
-    xss: 'https://rawgit.com/leizongmin/js-xss/master/dist/xss.js'
-  },
-  shim: {
-    xss: {exports: 'filterXSS'}
-  }
-})
-require(['xss'], function (xss) {
-  var html = xss('<script>alert("xss");</scr' + 'ipt>');
-  alert(html);
-});
-</script>
-```
-
-**说明：请勿将 URL https://rawgit.com/leizongmin/js-xss/master/dist/xss.js 用于生产环境。**
-
-### 使用命令行工具来对文件进行 XSS 处理
-
-### 处理文件
-
-可通过内置的 `xss` 命令来对输入的文件进行 XSS 处理。使用方法：
-
-```bash
-xss -i <源文件> -o <目标文件>
-```
-
-例：
-
-```bash
-xss -i origin.html -o target.html
-```
-
-### 在线测试
-
-执行以下命令，可在命令行中输入 HTML 代码，并看到过滤后的代码：
-
-```bash
-xss -t
-```
-
-详细命令行参数说明，请输入 `$ xss -h` 来查看。
-
-## 自定义过滤规则
-
-在调用 `xss()` 函数进行过滤时，可通过第二个参数来设置自定义规则：
-
-```javascript
-options = {}; // 自定义规则
-html = xss('<script>alert("xss");</script>', options);
-```
-
-如果不想每次都传入一个 `options` 参数，可以创建一个 `FilterXSS` 实例（使用这种方法速度更快）：
-
-```
-options = {};  // 自定义规则
-myxss = new xss.FilterXSS(options);
-// 以后直接调用 myxss.process() 来处理即可
-html = myxss.process('<script>alert("xss");</script>');
-```
-
-`options` 参数的详细说明见下文。
-
-### 白名单
-
-通过 `whiteList` 来指定，格式为：`{'标签名': ['属性1', '属性2']}`。不在白名单上的标签将被过滤，不在白名单上的属性也会被过滤。以下是示例：
-
-```javascript
-// 只允许a标签，该标签只允许href, title, target这三个属性
-var options = {
-  whiteList: {
-    a: ["href", "title", "target"]
-  }
-};
-// 使用以上配置后，下面的HTML
-// <a href="#" onclick="hello()"><i>大家好</i></a>
-// 将被过滤为
-// <a href="#">大家好</a>
-```
-
-默认白名单参考 `xss.whiteList`。
-
-### 自定义匹配到标签时的处理方法
-
-通过 `onTag` 来指定相应的处理函数。以下是详细说明：
-
-```javascript
-function onTag(tag, html, options) {
-  // tag是当前的标签名称，比如<a>标签，则tag的值是'a'
-  // html是该标签的HTML，比如<a>标签，则html的值是'<a>'
-  // options是一些附加的信息，具体如下：
-  //   isWhite    boolean类型，表示该标签是否在白名单上
-  //   isClosing  boolean类型，表示该标签是否为闭合标签，比如</a>时为true
-  //   position        integer类型，表示当前标签在输出的结果中的起始位置
-  //   sourcePosition  integer类型，表示当前标签在原HTML中的起始位置
-  // 如果返回一个字符串，则当前标签将被替换为该字符串
-  // 如果不返回任何值，则使用默认的处理方法：
-  //   在白名单上：  通过onTagAttr来过滤属性，详见下文
-  //   不在白名单上：通过onIgnoreTag指定，详见下文
-}
-```
-
-### 自定义匹配到标签的属性时的处理方法
-
-通过 `onTagAttr` 来指定相应的处理函数。以下是详细说明：
-
-```javascript
-function onTagAttr(tag, name, value, isWhiteAttr) {
-  // tag是当前的标签名称，比如<a>标签，则tag的值是'a'
-  // name是当前属性的名称，比如href="#"，则name的值是'href'
-  // value是当前属性的值，比如href="#"，则value的值是'#'
-  // isWhiteAttr是否为白名单上的属性
-  // 如果返回一个字符串，则当前属性值将被替换为该字符串
-  // 如果不返回任何值，则使用默认的处理方法
-  //   在白名单上：  调用safeAttrValue来过滤属性值，并输出该属性，详见下文
-  //   不在白名单上：通过onIgnoreTagAttr指定，详见下文
-}
-```
-
-### 自定义匹配到不在白名单上的标签时的处理方法
-
-通过 `onIgnoreTag` 来指定相应的处理函数。以下是详细说明：
-
-```javascript
-function onIgnoreTag(tag, html, options) {
-  // 参数说明与onTag相同
-  // 如果返回一个字符串，则当前标签将被替换为该字符串
-  // 如果不返回任何值，则使用默认的处理方法（通过escape指定，详见下文）
-}
-```
-
-### 自定义匹配到不在白名单上的属性时的处理方法
-
-通过 `onIgnoreTagAttr` 来指定相应的处理函数。以下是详细说明：
-
-```javascript
-function onIgnoreTagAttr(tag, name, value, isWhiteAttr) {
-  // 参数说明与onTagAttr相同
-  // 如果返回一个字符串，则当前属性值将被替换为该字符串
-  // 如果不返回任何值，则使用默认的处理方法（删除该属）
-}
-```
-
-### 自定义 HTML 转义函数
-
-通过 `escapeHtml` 来指定相应的处理函数。以下是默认代码 **（不建议修改）** ：
-
-```javascript
-function escapeHtml(html) {
-  return html.replace(/</g, "&lt;").replace(/>/g, "&gt;");
-}
-```
-
-### 自定义标签属性值的转义函数
-
-通过 `safeAttrValue` 来指定相应的处理函数。以下是详细说明：
-
-```javascript
-function safeAttrValue(tag, name, value) {
-  // 参数说明与onTagAttr相同（没有options参数）
-  // 返回一个字符串表示该属性值
-}
-```
-
-### 自定义 CSS 过滤器
-
-如果配置中允许了标签的 `style` 属性，则它的值会通过[cssfilter](https://github.com/leizongmin/js-css-filter) 模块处理。
-`cssfilter` 模块包含了一个默认的 CSS 白名单，你可以通过以下的方式配置：
-
-```javascript
-myxss = new xss.FilterXSS({
-  css: {
-    whiteList: {
-      position: /^fixed|relative$/,
-      top: true,
-      left: true
-    }
-  }
-});
-html = myxss.process('<script>alert("xss");</script>');
-```
-
-如果不想使用 CSS 过滤器来处理 `style` 属性的内容，可指定 `css` 选项的值为 `false`：
-
-```javascript
-myxss = new xss.FilterXSS({
-  css: false
-});
-```
-
-要获取更多的帮助信息可看这里：https://github.com/leizongmin/js-css-filter
-
-### 快捷配置
-
-#### 去掉不在白名单上的标签
-
-通过 `stripIgnoreTag` 来设置：
-
-* `true`：去掉不在白名单上的标签
-* `false`：（默认），使用配置的`escape`函数对该标签进行转义
-
-示例：
-
-当设置 `stripIgnoreTag = true`时，以下代码
-
-```html
-code:<script>alert(/xss/);</script>
-```
-
-过滤后将输出
-
-```html
-code:alert(/xss/);
-```
-
-#### 去掉不在白名单上的标签及标签体
-
-通过 `stripIgnoreTagBody` 来设置：
-
-* `false|null|undefined`：（默认），不特殊处理
-* `'*'|true`：去掉所有不在白名单上的标签
-* `['tag1', 'tag2']`：仅去掉指定的不在白名单上的标签
-
-示例：
-
-当设置 `stripIgnoreTagBody = ['script']`时，以下代码
-
-```html
-code:<script>alert(/xss/);</script>
-```
-
-过滤后将输出
-
-```html
-code:
-```
-
-#### 去掉 HTML 备注
-
-通过 `allowCommentTag` 来设置：
-
-* `true`：不处理
-* `false`：（默认），自动去掉 HTML 中的备注
-
-示例：
-
-当设置 `allowCommentTag = false` 时，以下代码
-
-```html
-code:<!-- something --> END
-```
-
-过滤后将输出
-
-```html
-code: END
-```
-
-## 应用实例
-
-### 允许标签以 data-开头的属性
-
-```javascript
-var source = '<div a="1" b="2" data-a="3" data-b="4">hello</div>';
-var html = xss(source, {
-  onIgnoreTagAttr: function(tag, name, value, isWhiteAttr) {
-    if (name.substr(0, 5) === "data-") {
-      // 通过内置的escapeAttrValue函数来对属性值进行转义
-      return name + '="' + xss.escapeAttrValue(value) + '"';
-    }
-  }
-});
-
-console.log("%s\nconvert to:\n%s", source, html);
-```
-
-运行结果：
-
-```html
-<div a="1" b="2" data-a="3" data-b="4">hello</div>
-convert to:
-<div data-a="3" data-b="4">hello</div>
-```
-
-### 允许名称以 x-开头的标签
-
-```javascript
-var source = "<x><x-1>he<x-2 checked></x-2>wwww</x-1><a>";
-var html = xss(source, {
-  onIgnoreTag: function(tag, html, options) {
-    if (tag.substr(0, 2) === "x-") {
-      // 不对其属性列表进行过滤
-      return html;
-    }
-  }
-});
-
-console.log("%s\nconvert to:\n%s", source, html);
-```
-
-运行结果：
-
-```html
-<x><x-1>he<x-2 checked></x-2>wwww</x-1><a>
-convert to:
-&lt;x&gt;<x-1>he<x-2 checked></x-2>wwww</x-1><a>
-```
-
-### 分析 HTML 代码中的图片列表
-
-```javascript
-var source =
-  '<img src="img1">a<img src="img2">b<img src="img3">c<img src="img4">d';
-var list = [];
-var html = xss(source, {
-  onTagAttr: function(tag, name, value, isWhiteAttr) {
-    if (tag === "img" && name === "src") {
-      // 使用内置的friendlyAttrValue函数来对属性值进行转义，可将&lt;这类的实体标记转换成打印字符<
-      list.push(xss.friendlyAttrValue(value));
-    }
-    // 不返回任何值，表示还是按照默认的方法处理
-  }
-});
-
-console.log("image list:\n%s", list.join(", "));
-```
-
-运行结果：
-
-```html
-image list:
-img1, img2, img3, img4
-```
-
-### 去除 HTML 标签（只保留文本内容）
-
-```javascript
-var source = "<strong>hello</strong><script>alert(/xss/);</script>end";
-var html = xss(source, {
-  whiteList: [], // 白名单为空，表示过滤所有标签
-  stripIgnoreTag: true, // 过滤所有非白名单标签的HTML
-  stripIgnoreTagBody: ["script"] // script标签较特殊，需要过滤标签中间的内容
-});
-
-console.log("text: %s", html);
-```
-
-运行结果：
-
-```html
-text: helloend
-```
-
-## 授权协议
-
-```text
-Copyright (c) 2012-2018 Zongmin Lei(雷宗民) <leizongmin@gmail.com>
-http://ucdok.com
-
-The MIT License
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-```
diff --git a/node_modules/xss/bin/xss b/node_modules/xss/bin/xss
deleted file mode 100755
index 35e902f..0000000
--- a/node_modules/xss/bin/xss
+++ /dev/null
@@ -1,67 +0,0 @@
-#!/usr/bin/env node
-
-/**
- * 命令行工具
- *
- * @author Zongmin Lei<leizongmin@gmail.com>
- */
-
-var fs = require('fs');
-var path = require('path');
-var program = require('commander');
-var xss = require('../');
-var packageInfo = require('../package.json');
-
-program
-  .version(packageInfo.version)
-  .option('-t, --test', 'active test')
-  .option('-i, --input <input_file>', 'input file name')
-  .option('-o, --output <output_file>', 'output filename')
-  .option('-c, --config <config_file>', 'load custom config')
-  .option('-s, --strip-ignore-tag', 'set stripIgnoreTag=true')
-  .option('-b, --strip-ignore-tag-body', 'set stripIgnoreTagBody=true');
-
-program.on('--help', function () {
-  console.log('  Examples:');
-  console.log('');
-  console.log('    $ xss -t');
-  console.log('    $ xss -i origin.html');
-  console.log('    $ xss -i origin.html -o targer.html');
-  console.log('    $ xss -i origin.html -c config.js');
-  console.log('    $ xss -i origin.html -s');
-  console.log('    $ xss -i origin.html -s -b');
-  console.log('');
-  console.log('  For more details, please see: https://npmjs.org/package/xss')
-});
-
-program.parse(process.argv);
-
-if (program.test) {
-  require('../lib/cli');
-  return;
-}
-
-var config = {};
-if (program.config) {
-  config = require(path.resolve(program.config));
-}
-if (program.input) {
-  var input = fs.readFileSync(program.input, 'utf8');
-} else {
-  program.help();
-}
-
-if (program['strip-ignore-tag']) {
-  config.stripIgnoreTag = true;
-}
-if (program['strip-ignore-tag-body']) {
-  config.stripIgnoreTagBody = true;
-}
-
-var output = xss(input, config);
-
-if (program.output) {
-  fs.writeFileSync(program.output, output);
-} else {
-  console.log(output);
-}
diff --git a/node_modules/xss/dist/test.html b/node_modules/xss/dist/test.html
deleted file mode 100644
index cae361e..0000000
--- a/node_modules/xss/dist/test.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<!doctype html>
-<html>
-<head>
-  <title>测试</title>
-  <meta charset="utf8">
-</head>
-<body>
-  <pre id="result"></pre>
-</body>
-</html>
-<script src="xss.js"></script>
-<script>
-var code = '<script>alert("xss");</' + 'script>';
-document.querySelector('#result').innerText = code + '\n被转换成了\n' + filterXSS(code);
-</script>
\ No newline at end of file
diff --git a/node_modules/xss/dist/xss.min.js b/node_modules/xss/dist/xss.min.js
deleted file mode 100644
index b2c3878..0000000
--- a/node_modules/xss/dist/xss.min.js
+++ /dev/null
@@ -1 +0,0 @@
-(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){var FilterCSS=require("cssfilter").FilterCSS;var getDefaultCSSWhiteList=require("cssfilter").getDefaultWhiteList;var _=require("./util");function getDefaultWhiteList(){return{a:["target","href","title"],abbr:["title"],address:[],area:["shape","coords","href","alt"],article:[],aside:[],audio:["autoplay","controls","loop","preload","src"],b:[],bdi:["dir"],bdo:["dir"],big:[],blockquote:["cite"],br:[],caption:[],center:[],cite:[],code:[],col:["align","valign","span","width"],colgroup:["align","valign","span","width"],dd:[],del:["datetime"],details:["open"],div:[],dl:[],dt:[],em:[],font:["color","size","face"],footer:[],h1:[],h2:[],h3:[],h4:[],h5:[],h6:[],header:[],hr:[],i:[],img:["src","alt","title","width","height"],ins:["datetime"],li:[],mark:[],nav:[],ol:[],p:[],pre:[],s:[],section:[],small:[],span:[],sub:[],sup:[],strong:[],table:["width","border","align","valign"],tbody:["align","valign"],td:["width","rowspan","colspan","align","valign"],tfoot:["align","valign"],th:["width","rowspan","colspan","align","valign"],thead:["align","valign"],tr:["rowspan","align","valign"],tt:[],u:[],ul:[],video:["autoplay","controls","loop","preload","src","height","width"]}}var defaultCSSFilter=new FilterCSS;function onTag(tag,html,options){}function onIgnoreTag(tag,html,options){}function onTagAttr(tag,name,value){}function onIgnoreTagAttr(tag,name,value){}function escapeHtml(html){return html.replace(REGEXP_LT,"&lt;").replace(REGEXP_GT,"&gt;")}function safeAttrValue(tag,name,value,cssFilter){value=friendlyAttrValue(value);if(name==="href"||name==="src"){value=_.trim(value);if(value==="#")return"#";if(!(value.substr(0,7)==="http://"||value.substr(0,8)==="https://"||value.substr(0,7)==="mailto:"||value.substr(0,4)==="tel:"||value[0]==="#"||value[0]==="/")){return""}}else if(name==="background"){REGEXP_DEFAULT_ON_TAG_ATTR_4.lastIndex=0;if(REGEXP_DEFAULT_ON_TAG_ATTR_4.test(value)){return""}}else if(name==="style"){REGEXP_DEFAULT_ON_TAG_ATTR_7.lastIndex=0;if(REGEXP_DEFAULT_ON_TAG_ATTR_7.test(value)){return""}REGEXP_DEFAULT_ON_TAG_ATTR_8.lastIndex=0;if(REGEXP_DEFAULT_ON_TAG_ATTR_8.test(value)){REGEXP_DEFAULT_ON_TAG_ATTR_4.lastIndex=0;if(REGEXP_DEFAULT_ON_TAG_ATTR_4.test(value)){return""}}if(cssFilter!==false){cssFilter=cssFilter||defaultCSSFilter;value=cssFilter.process(value)}}value=escapeAttrValue(value);return value}var REGEXP_LT=/</g;var REGEXP_GT=/>/g;var REGEXP_QUOTE=/"/g;var REGEXP_QUOTE_2=/&quot;/g;var REGEXP_ATTR_VALUE_1=/&#([a-zA-Z0-9]*);?/gim;var REGEXP_ATTR_VALUE_COLON=/&colon;?/gim;var REGEXP_ATTR_VALUE_NEWLINE=/&newline;?/gim;var REGEXP_DEFAULT_ON_TAG_ATTR_3=/\/\*|\*\//gm;var REGEXP_DEFAULT_ON_TAG_ATTR_4=/((j\s*a\s*v\s*a|v\s*b|l\s*i\s*v\s*e)\s*s\s*c\s*r\s*i\s*p\s*t\s*|m\s*o\s*c\s*h\s*a)\:/gi;var REGEXP_DEFAULT_ON_TAG_ATTR_5=/^[\s"'`]*(d\s*a\s*t\s*a\s*)\:/gi;var REGEXP_DEFAULT_ON_TAG_ATTR_6=/^[\s"'`]*(d\s*a\s*t\s*a\s*)\:\s*image\//gi;var REGEXP_DEFAULT_ON_TAG_ATTR_7=/e\s*x\s*p\s*r\s*e\s*s\s*s\s*i\s*o\s*n\s*\(.*/gi;var REGEXP_DEFAULT_ON_TAG_ATTR_8=/u\s*r\s*l\s*\(.*/gi;function escapeQuote(str){return str.replace(REGEXP_QUOTE,"&quot;")}function unescapeQuote(str){return str.replace(REGEXP_QUOTE_2,'"')}function escapeHtmlEntities(str){return str.replace(REGEXP_ATTR_VALUE_1,function replaceUnicode(str,code){return code[0]==="x"||code[0]==="X"?String.fromCharCode(parseInt(code.substr(1),16)):String.fromCharCode(parseInt(code,10))})}function escapeDangerHtml5Entities(str){return str.replace(REGEXP_ATTR_VALUE_COLON,":").replace(REGEXP_ATTR_VALUE_NEWLINE," ")}function clearNonPrintableCharacter(str){var str2="";for(var i=0,len=str.length;i<len;i++){str2+=str.charCodeAt(i)<32?" ":str.charAt(i)}return _.trim(str2)}function friendlyAttrValue(str){str=unescapeQuote(str);str=escapeHtmlEntities(str);str=escapeDangerHtml5Entities(str);str=clearNonPrintableCharacter(str);return str}function escapeAttrValue(str){str=escapeQuote(str);str=escapeHtml(str);return str}function onIgnoreTagStripAll(){return""}function StripTagBody(tags,next){if(typeof next!=="function"){next=function(){}}var isRemoveAllTag=!Array.isArray(tags);function isRemoveTag(tag){if(isRemoveAllTag)return true;return _.indexOf(tags,tag)!==-1}var removeList=[];var posStart=false;return{onIgnoreTag:function(tag,html,options){if(isRemoveTag(tag)){if(options.isClosing){var ret="[/removed]";var end=options.position+ret.length;removeList.push([posStart!==false?posStart:options.position,end]);posStart=false;return ret}else{if(!posStart){posStart=options.position}return"[removed]"}}else{return next(tag,html,options)}},remove:function(html){var rethtml="";var lastPos=0;_.forEach(removeList,function(pos){rethtml+=html.slice(lastPos,pos[0]);lastPos=pos[1]});rethtml+=html.slice(lastPos);return rethtml}}}function stripCommentTag(html){return html.replace(STRIP_COMMENT_TAG_REGEXP,"")}var STRIP_COMMENT_TAG_REGEXP=/<!--[\s\S]*?-->/g;function stripBlankChar(html){var chars=html.split("");chars=chars.filter(function(char){var c=char.charCodeAt(0);if(c===127)return false;if(c<=31){if(c===10||c===13)return true;return false}return true});return chars.join("")}exports.whiteList=getDefaultWhiteList();exports.getDefaultWhiteList=getDefaultWhiteList;exports.onTag=onTag;exports.onIgnoreTag=onIgnoreTag;exports.onTagAttr=onTagAttr;exports.onIgnoreTagAttr=onIgnoreTagAttr;exports.safeAttrValue=safeAttrValue;exports.escapeHtml=escapeHtml;exports.escapeQuote=escapeQuote;exports.unescapeQuote=unescapeQuote;exports.escapeHtmlEntities=escapeHtmlEntities;exports.escapeDangerHtml5Entities=escapeDangerHtml5Entities;exports.clearNonPrintableCharacter=clearNonPrintableCharacter;exports.friendlyAttrValue=friendlyAttrValue;exports.escapeAttrValue=escapeAttrValue;exports.onIgnoreTagStripAll=onIgnoreTagStripAll;exports.StripTagBody=StripTagBody;exports.stripCommentTag=stripCommentTag;exports.stripBlankChar=stripBlankChar;exports.cssFilter=defaultCSSFilter;exports.getDefaultCSSWhiteList=getDefaultCSSWhiteList},{"./util":4,cssfilter:8}],2:[function(require,module,exports){var DEFAULT=require("./default");var parser=require("./parser");var FilterXSS=require("./xss");function filterXSS(html,options){var xss=new FilterXSS(options);return xss.process(html)}exports=module.exports=filterXSS;exports.filterXSS=filterXSS;exports.FilterXSS=FilterXSS;for(var i in DEFAULT)exports[i]=DEFAULT[i];for(var i in parser)exports[i]=parser[i];if(typeof window!=="undefined"){window.filterXSS=module.exports}function isWorkerEnv(){return typeof self!=="undefined"&&typeof DedicatedWorkerGlobalScope!=="undefined"&&self instanceof DedicatedWorkerGlobalScope}if(isWorkerEnv()){self.filterXSS=module.exports}},{"./default":1,"./parser":3,"./xss":5}],3:[function(require,module,exports){var _=require("./util");function getTagName(html){var i=_.spaceIndex(html);if(i===-1){var tagName=html.slice(1,-1)}else{var tagName=html.slice(1,i+1)}tagName=_.trim(tagName).toLowerCase();if(tagName.slice(0,1)==="/")tagName=tagName.slice(1);if(tagName.slice(-1)==="/")tagName=tagName.slice(0,-1);return tagName}function isClosing(html){return html.slice(0,2)==="</"}function parseTag(html,onTag,escapeHtml){"user strict";var rethtml="";var lastPos=0;var tagStart=false;var quoteStart=false;var currentPos=0;var len=html.length;var currentTagName="";var currentHtml="";for(currentPos=0;currentPos<len;currentPos++){var c=html.charAt(currentPos);if(tagStart===false){if(c==="<"){tagStart=currentPos;continue}}else{if(quoteStart===false){if(c==="<"){rethtml+=escapeHtml(html.slice(lastPos,currentPos));tagStart=currentPos;lastPos=currentPos;continue}if(c===">"){rethtml+=escapeHtml(html.slice(lastPos,tagStart));currentHtml=html.slice(tagStart,currentPos+1);currentTagName=getTagName(currentHtml);rethtml+=onTag(tagStart,rethtml.length,currentTagName,currentHtml,isClosing(currentHtml));lastPos=currentPos+1;tagStart=false;continue}if((c==='"'||c==="'")&&html.charAt(currentPos-1)==="="){quoteStart=c;continue}}else{if(c===quoteStart){quoteStart=false;continue}}}}if(lastPos<html.length){rethtml+=escapeHtml(html.substr(lastPos))}return rethtml}var REGEXP_ILLEGAL_ATTR_NAME=/[^a-zA-Z0-9_:\.\-]/gim;function parseAttr(html,onAttr){"user strict";var lastPos=0;var retAttrs=[];var tmpName=false;var len=html.length;function addAttr(name,value){name=_.trim(name);name=name.replace(REGEXP_ILLEGAL_ATTR_NAME,"").toLowerCase();if(name.length<1)return;var ret=onAttr(name,value||"");if(ret)retAttrs.push(ret)}for(var i=0;i<len;i++){var c=html.charAt(i);var v,j;if(tmpName===false&&c==="="){tmpName=html.slice(lastPos,i);lastPos=i+1;continue}if(tmpName!==false){if(i===lastPos&&(c==='"'||c==="'")&&html.charAt(i-1)==="="){j=html.indexOf(c,i+1);if(j===-1){break}else{v=_.trim(html.slice(lastPos+1,j));addAttr(tmpName,v);tmpName=false;i=j;lastPos=i+1;continue}}}if(/\s|\n|\t/.test(c)){html=html.replace(/\s|\n|\t/g," ");if(tmpName===false){j=findNextEqual(html,i);if(j===-1){v=_.trim(html.slice(lastPos,i));addAttr(v);tmpName=false;lastPos=i+1;continue}else{i=j-1;continue}}else{j=findBeforeEqual(html,i-1);if(j===-1){v=_.trim(html.slice(lastPos,i));v=stripQuoteWrap(v);addAttr(tmpName,v);tmpName=false;lastPos=i+1;continue}else{continue}}}}if(lastPos<html.length){if(tmpName===false){addAttr(html.slice(lastPos))}else{addAttr(tmpName,stripQuoteWrap(_.trim(html.slice(lastPos))))}}return _.trim(retAttrs.join(" "))}function findNextEqual(str,i){for(;i<str.length;i++){var c=str[i];if(c===" ")continue;if(c==="=")return i;return-1}}function findBeforeEqual(str,i){for(;i>0;i--){var c=str[i];if(c===" ")continue;if(c==="=")return i;return-1}}function isQuoteWrapString(text){if(text[0]==='"'&&text[text.length-1]==='"'||text[0]==="'"&&text[text.length-1]==="'"){return true}else{return false}}function stripQuoteWrap(text){if(isQuoteWrapString(text)){return text.substr(1,text.length-2)}else{return text}}exports.parseTag=parseTag;exports.parseAttr=parseAttr},{"./util":4}],4:[function(require,module,exports){module.exports={indexOf:function(arr,item){var i,j;if(Array.prototype.indexOf){return arr.indexOf(item)}for(i=0,j=arr.length;i<j;i++){if(arr[i]===item){return i}}return-1},forEach:function(arr,fn,scope){var i,j;if(Array.prototype.forEach){return arr.forEach(fn,scope)}for(i=0,j=arr.length;i<j;i++){fn.call(scope,arr[i],i,arr)}},trim:function(str){if(String.prototype.trim){return str.trim()}return str.replace(/(^\s*)|(\s*$)/g,"")},spaceIndex:function(str){var reg=/\s|\n|\t/;var match=reg.exec(str);return match?match.index:-1}}},{}],5:[function(require,module,exports){var FilterCSS=require("cssfilter").FilterCSS;var DEFAULT=require("./default");var parser=require("./parser");var parseTag=parser.parseTag;var parseAttr=parser.parseAttr;var _=require("./util");function isNull(obj){return obj===undefined||obj===null}function getAttrs(html){var i=_.spaceIndex(html);if(i===-1){return{html:"",closing:html[html.length-2]==="/"}}html=_.trim(html.slice(i+1,-1));var isClosing=html[html.length-1]==="/";if(isClosing)html=_.trim(html.slice(0,-1));return{html:html,closing:isClosing}}function shallowCopyObject(obj){var ret={};for(var i in obj){ret[i]=obj[i]}return ret}function FilterXSS(options){options=shallowCopyObject(options||{});if(options.stripIgnoreTag){if(options.onIgnoreTag){console.error('Notes: cannot use these two options "stripIgnoreTag" and "onIgnoreTag" at the same time')}options.onIgnoreTag=DEFAULT.onIgnoreTagStripAll}options.whiteList=options.whiteList||DEFAULT.whiteList;options.onTag=options.onTag||DEFAULT.onTag;options.onTagAttr=options.onTagAttr||DEFAULT.onTagAttr;options.onIgnoreTag=options.onIgnoreTag||DEFAULT.onIgnoreTag;options.onIgnoreTagAttr=options.onIgnoreTagAttr||DEFAULT.onIgnoreTagAttr;options.safeAttrValue=options.safeAttrValue||DEFAULT.safeAttrValue;options.escapeHtml=options.escapeHtml||DEFAULT.escapeHtml;this.options=options;if(options.css===false){this.cssFilter=false}else{options.css=options.css||{};this.cssFilter=new FilterCSS(options.css)}}FilterXSS.prototype.process=function(html){html=html||"";html=html.toString();if(!html)return"";var me=this;var options=me.options;var whiteList=options.whiteList;var onTag=options.onTag;var onIgnoreTag=options.onIgnoreTag;var onTagAttr=options.onTagAttr;var onIgnoreTagAttr=options.onIgnoreTagAttr;var safeAttrValue=options.safeAttrValue;var escapeHtml=options.escapeHtml;var cssFilter=me.cssFilter;if(options.stripBlankChar){html=DEFAULT.stripBlankChar(html)}if(!options.allowCommentTag){html=DEFAULT.stripCommentTag(html)}var stripIgnoreTagBody=false;if(options.stripIgnoreTagBody){var stripIgnoreTagBody=DEFAULT.StripTagBody(options.stripIgnoreTagBody,onIgnoreTag);onIgnoreTag=stripIgnoreTagBody.onIgnoreTag}var retHtml=parseTag(html,function(sourcePosition,position,tag,html,isClosing){var info={sourcePosition:sourcePosition,position:position,isClosing:isClosing,isWhite:whiteList.hasOwnProperty(tag)};var ret=onTag(tag,html,info);if(!isNull(ret))return ret;if(info.isWhite){if(info.isClosing){return"</"+tag+">"}var attrs=getAttrs(html);var whiteAttrList=whiteList[tag];var attrsHtml=parseAttr(attrs.html,function(name,value){var isWhiteAttr=_.indexOf(whiteAttrList,name)!==-1;var ret=onTagAttr(tag,name,value,isWhiteAttr);if(!isNull(ret))return ret;if(isWhiteAttr){value=safeAttrValue(tag,name,value,cssFilter);if(value){return name+'="'+value+'"'}else{return name}}else{var ret=onIgnoreTagAttr(tag,name,value,isWhiteAttr);if(!isNull(ret))return ret;return}});var html="<"+tag;if(attrsHtml)html+=" "+attrsHtml;if(attrs.closing)html+=" /";html+=">";return html}else{var ret=onIgnoreTag(tag,html,info);if(!isNull(ret))return ret;return escapeHtml(html)}},escapeHtml);if(stripIgnoreTagBody){retHtml=stripIgnoreTagBody.remove(retHtml)}return retHtml};module.exports=FilterXSS},{"./default":1,"./parser":3,"./util":4,cssfilter:8}],6:[function(require,module,exports){var DEFAULT=require("./default");var parseStyle=require("./parser");var _=require("./util");function isNull(obj){return obj===undefined||obj===null}function shallowCopyObject(obj){var ret={};for(var i in obj){ret[i]=obj[i]}return ret}function FilterCSS(options){options=shallowCopyObject(options||{});options.whiteList=options.whiteList||DEFAULT.whiteList;options.onAttr=options.onAttr||DEFAULT.onAttr;options.onIgnoreAttr=options.onIgnoreAttr||DEFAULT.onIgnoreAttr;options.safeAttrValue=options.safeAttrValue||DEFAULT.safeAttrValue;this.options=options}FilterCSS.prototype.process=function(css){css=css||"";css=css.toString();if(!css)return"";var me=this;var options=me.options;var whiteList=options.whiteList;var onAttr=options.onAttr;var onIgnoreAttr=options.onIgnoreAttr;var safeAttrValue=options.safeAttrValue;var retCSS=parseStyle(css,function(sourcePosition,position,name,value,source){var check=whiteList[name];var isWhite=false;if(check===true)isWhite=check;else if(typeof check==="function")isWhite=check(value);else if(check instanceof RegExp)isWhite=check.test(value);if(isWhite!==true)isWhite=false;value=safeAttrValue(name,value);if(!value)return;var opts={position:position,sourcePosition:sourcePosition,source:source,isWhite:isWhite};if(isWhite){var ret=onAttr(name,value,opts);if(isNull(ret)){return name+":"+value}else{return ret}}else{var ret=onIgnoreAttr(name,value,opts);if(!isNull(ret)){return ret}}});return retCSS};module.exports=FilterCSS},{"./default":7,"./parser":9,"./util":10}],7:[function(require,module,exports){function getDefaultWhiteList(){var whiteList={};whiteList["align-content"]=false;whiteList["align-items"]=false;whiteList["align-self"]=false;whiteList["alignment-adjust"]=false;whiteList["alignment-baseline"]=false;whiteList["all"]=false;whiteList["anchor-point"]=false;whiteList["animation"]=false;whiteList["animation-delay"]=false;whiteList["animation-direction"]=false;whiteList["animation-duration"]=false;whiteList["animation-fill-mode"]=false;whiteList["animation-iteration-count"]=false;whiteList["animation-name"]=false;whiteList["animation-play-state"]=false;whiteList["animation-timing-function"]=false;whiteList["azimuth"]=false;whiteList["backface-visibility"]=false;whiteList["background"]=true;whiteList["background-attachment"]=true;whiteList["background-clip"]=true;whiteList["background-color"]=true;whiteList["background-image"]=true;whiteList["background-origin"]=true;whiteList["background-position"]=true;whiteList["background-repeat"]=true;whiteList["background-size"]=true;whiteList["baseline-shift"]=false;whiteList["binding"]=false;whiteList["bleed"]=false;whiteList["bookmark-label"]=false;whiteList["bookmark-level"]=false;whiteList["bookmark-state"]=false;whiteList["border"]=true;whiteList["border-bottom"]=true;whiteList["border-bottom-color"]=true;whiteList["border-bottom-left-radius"]=true;whiteList["border-bottom-right-radius"]=true;whiteList["border-bottom-style"]=true;whiteList["border-bottom-width"]=true;whiteList["border-collapse"]=true;whiteList["border-color"]=true;whiteList["border-image"]=true;whiteList["border-image-outset"]=true;whiteList["border-image-repeat"]=true;whiteList["border-image-slice"]=true;whiteList["border-image-source"]=true;whiteList["border-image-width"]=true;whiteList["border-left"]=true;whiteList["border-left-color"]=true;whiteList["border-left-style"]=true;whiteList["border-left-width"]=true;whiteList["border-radius"]=true;whiteList["border-right"]=true;whiteList["border-right-color"]=true;whiteList["border-right-style"]=true;whiteList["border-right-width"]=true;whiteList["border-spacing"]=true;whiteList["border-style"]=true;whiteList["border-top"]=true;whiteList["border-top-color"]=true;whiteList["border-top-left-radius"]=true;whiteList["border-top-right-radius"]=true;whiteList["border-top-style"]=true;whiteList["border-top-width"]=true;whiteList["border-width"]=true;whiteList["bottom"]=false;whiteList["box-decoration-break"]=true;whiteList["box-shadow"]=true;whiteList["box-sizing"]=true;whiteList["box-snap"]=true;whiteList["box-suppress"]=true;whiteList["break-after"]=true;whiteList["break-before"]=true;whiteList["break-inside"]=true;whiteList["caption-side"]=false;whiteList["chains"]=false;whiteList["clear"]=true;whiteList["clip"]=false;whiteList["clip-path"]=false;whiteList["clip-rule"]=false;whiteList["color"]=true;whiteList["color-interpolation-filters"]=true;whiteList["column-count"]=false;whiteList["column-fill"]=false;whiteList["column-gap"]=false;whiteList["column-rule"]=false;whiteList["column-rule-color"]=false;whiteList["column-rule-style"]=false;whiteList["column-rule-width"]=false;whiteList["column-span"]=false;whiteList["column-width"]=false;whiteList["columns"]=false;whiteList["contain"]=false;whiteList["content"]=false;whiteList["counter-increment"]=false;whiteList["counter-reset"]=false;whiteList["counter-set"]=false;whiteList["crop"]=false;whiteList["cue"]=false;whiteList["cue-after"]=false;whiteList["cue-before"]=false;whiteList["cursor"]=false;whiteList["direction"]=false;whiteList["display"]=true;whiteList["display-inside"]=true;whiteList["display-list"]=true;whiteList["display-outside"]=true;whiteList["dominant-baseline"]=false;whiteList["elevation"]=false;whiteList["empty-cells"]=false;whiteList["filter"]=false;whiteList["flex"]=false;whiteList["flex-basis"]=false;whiteList["flex-direction"]=false;whiteList["flex-flow"]=false;whiteList["flex-grow"]=false;whiteList["flex-shrink"]=false;whiteList["flex-wrap"]=false;whiteList["float"]=false;whiteList["float-offset"]=false;whiteList["flood-color"]=false;whiteList["flood-opacity"]=false;whiteList["flow-from"]=false;whiteList["flow-into"]=false;whiteList["font"]=true;whiteList["font-family"]=true;whiteList["font-feature-settings"]=true;whiteList["font-kerning"]=true;whiteList["font-language-override"]=true;whiteList["font-size"]=true;whiteList["font-size-adjust"]=true;whiteList["font-stretch"]=true;whiteList["font-style"]=true;whiteList["font-synthesis"]=true;whiteList["font-variant"]=true;whiteList["font-variant-alternates"]=true;whiteList["font-variant-caps"]=true;whiteList["font-variant-east-asian"]=true;whiteList["font-variant-ligatures"]=true;whiteList["font-variant-numeric"]=true;whiteList["font-variant-position"]=true;whiteList["font-weight"]=true;whiteList["grid"]=false;whiteList["grid-area"]=false;whiteList["grid-auto-columns"]=false;whiteList["grid-auto-flow"]=false;whiteList["grid-auto-rows"]=false;whiteList["grid-column"]=false;whiteList["grid-column-end"]=false;whiteList["grid-column-start"]=false;whiteList["grid-row"]=false;whiteList["grid-row-end"]=false;whiteList["grid-row-start"]=false;whiteList["grid-template"]=false;whiteList["grid-template-areas"]=false;whiteList["grid-template-columns"]=false;whiteList["grid-template-rows"]=false;whiteList["hanging-punctuation"]=false;whiteList["height"]=true;whiteList["hyphens"]=false;whiteList["icon"]=false;whiteList["image-orientation"]=false;whiteList["image-resolution"]=false;whiteList["ime-mode"]=false;whiteList["initial-letters"]=false;whiteList["inline-box-align"]=false;whiteList["justify-content"]=false;whiteList["justify-items"]=false;whiteList["justify-self"]=false;whiteList["left"]=false;whiteList["letter-spacing"]=true;whiteList["lighting-color"]=true;whiteList["line-box-contain"]=false;whiteList["line-break"]=false;whiteList["line-grid"]=false;whiteList["line-height"]=false;whiteList["line-snap"]=false;whiteList["line-stacking"]=false;whiteList["line-stacking-ruby"]=false;whiteList["line-stacking-shift"]=false;whiteList["line-stacking-strategy"]=false;whiteList["list-style"]=true;whiteList["list-style-image"]=true;whiteList["list-style-position"]=true;whiteList["list-style-type"]=true;whiteList["margin"]=true;whiteList["margin-bottom"]=true;whiteList["margin-left"]=true;whiteList["margin-right"]=true;whiteList["margin-top"]=true;whiteList["marker-offset"]=false;whiteList["marker-side"]=false;whiteList["marks"]=false;whiteList["mask"]=false;whiteList["mask-box"]=false;whiteList["mask-box-outset"]=false;whiteList["mask-box-repeat"]=false;whiteList["mask-box-slice"]=false;whiteList["mask-box-source"]=false;whiteList["mask-box-width"]=false;whiteList["mask-clip"]=false;whiteList["mask-image"]=false;whiteList["mask-origin"]=false;whiteList["mask-position"]=false;whiteList["mask-repeat"]=false;whiteList["mask-size"]=false;whiteList["mask-source-type"]=false;whiteList["mask-type"]=false;whiteList["max-height"]=true;whiteList["max-lines"]=false;whiteList["max-width"]=true;whiteList["min-height"]=true;whiteList["min-width"]=true;whiteList["move-to"]=false;whiteList["nav-down"]=false;whiteList["nav-index"]=false;whiteList["nav-left"]=false;whiteList["nav-right"]=false;whiteList["nav-up"]=false;whiteList["object-fit"]=false;whiteList["object-position"]=false;whiteList["opacity"]=false;whiteList["order"]=false;whiteList["orphans"]=false;whiteList["outline"]=false;whiteList["outline-color"]=false;whiteList["outline-offset"]=false;whiteList["outline-style"]=false;whiteList["outline-width"]=false;whiteList["overflow"]=false;whiteList["overflow-wrap"]=false;whiteList["overflow-x"]=false;whiteList["overflow-y"]=false;whiteList["padding"]=true;whiteList["padding-bottom"]=true;whiteList["padding-left"]=true;whiteList["padding-right"]=true;whiteList["padding-top"]=true;whiteList["page"]=false;whiteList["page-break-after"]=false;whiteList["page-break-before"]=false;whiteList["page-break-inside"]=false;whiteList["page-policy"]=false;whiteList["pause"]=false;whiteList["pause-after"]=false;whiteList["pause-before"]=false;whiteList["perspective"]=false;whiteList["perspective-origin"]=false;whiteList["pitch"]=false;whiteList["pitch-range"]=false;whiteList["play-during"]=false;whiteList["position"]=false;whiteList["presentation-level"]=false;whiteList["quotes"]=false;whiteList["region-fragment"]=false;whiteList["resize"]=false;whiteList["rest"]=false;whiteList["rest-after"]=false;whiteList["rest-before"]=false;whiteList["richness"]=false;whiteList["right"]=false;whiteList["rotation"]=false;whiteList["rotation-point"]=false;whiteList["ruby-align"]=false;whiteList["ruby-merge"]=false;whiteList["ruby-position"]=false;whiteList["shape-image-threshold"]=false;whiteList["shape-outside"]=false;whiteList["shape-margin"]=false;whiteList["size"]=false;whiteList["speak"]=false;whiteList["speak-as"]=false;whiteList["speak-header"]=false;whiteList["speak-numeral"]=false;whiteList["speak-punctuation"]=false;whiteList["speech-rate"]=false;whiteList["stress"]=false;whiteList["string-set"]=false;whiteList["tab-size"]=false;whiteList["table-layout"]=false;whiteList["text-align"]=true;whiteList["text-align-last"]=true;whiteList["text-combine-upright"]=true;whiteList["text-decoration"]=true;whiteList["text-decoration-color"]=true;whiteList["text-decoration-line"]=true;whiteList["text-decoration-skip"]=true;whiteList["text-decoration-style"]=true;whiteList["text-emphasis"]=true;whiteList["text-emphasis-color"]=true;whiteList["text-emphasis-position"]=true;whiteList["text-emphasis-style"]=true;whiteList["text-height"]=true;whiteList["text-indent"]=true;whiteList["text-justify"]=true;whiteList["text-orientation"]=true;whiteList["text-overflow"]=true;whiteList["text-shadow"]=true;whiteList["text-space-collapse"]=true;whiteList["text-transform"]=true;whiteList["text-underline-position"]=true;whiteList["text-wrap"]=true;whiteList["top"]=false;whiteList["transform"]=false;whiteList["transform-origin"]=false;whiteList["transform-style"]=false;whiteList["transition"]=false;whiteList["transition-delay"]=false;whiteList["transition-duration"]=false;whiteList["transition-property"]=false;whiteList["transition-timing-function"]=false;whiteList["unicode-bidi"]=false;whiteList["vertical-align"]=false;whiteList["visibility"]=false;whiteList["voice-balance"]=false;whiteList["voice-duration"]=false;whiteList["voice-family"]=false;whiteList["voice-pitch"]=false;whiteList["voice-range"]=false;whiteList["voice-rate"]=false;whiteList["voice-stress"]=false;whiteList["voice-volume"]=false;whiteList["volume"]=false;whiteList["white-space"]=false;whiteList["widows"]=false;whiteList["width"]=true;whiteList["will-change"]=false;whiteList["word-break"]=true;whiteList["word-spacing"]=true;whiteList["word-wrap"]=true;whiteList["wrap-flow"]=false;whiteList["wrap-through"]=false;whiteList["writing-mode"]=false;whiteList["z-index"]=false;return whiteList}function onAttr(name,value,options){}function onIgnoreAttr(name,value,options){}var REGEXP_URL_JAVASCRIPT=/javascript\s*\:/gim;function safeAttrValue(name,value){if(REGEXP_URL_JAVASCRIPT.test(value))return"";return value}exports.whiteList=getDefaultWhiteList();exports.getDefaultWhiteList=getDefaultWhiteList;exports.onAttr=onAttr;exports.onIgnoreAttr=onIgnoreAttr;exports.safeAttrValue=safeAttrValue},{}],8:[function(require,module,exports){var DEFAULT=require("./default");var FilterCSS=require("./css");function filterCSS(html,options){var xss=new FilterCSS(options);return xss.process(html)}exports=module.exports=filterCSS;exports.FilterCSS=FilterCSS;for(var i in DEFAULT)exports[i]=DEFAULT[i];if(typeof window!=="undefined"){window.filterCSS=module.exports}},{"./css":6,"./default":7}],9:[function(require,module,exports){var _=require("./util");function parseStyle(css,onAttr){css=_.trimRight(css);if(css[css.length-1]!==";")css+=";";var cssLength=css.length;var isParenthesisOpen=false;var lastPos=0;var i=0;var retCSS="";function addNewAttr(){if(!isParenthesisOpen){var source=_.trim(css.slice(lastPos,i));var j=source.indexOf(":");if(j!==-1){var name=_.trim(source.slice(0,j));var value=_.trim(source.slice(j+1));if(name){var ret=onAttr(lastPos,retCSS.length,name,value,source);if(ret)retCSS+=ret+"; "}}}lastPos=i+1}for(;i<cssLength;i++){var c=css[i];if(c==="/"&&css[i+1]==="*"){var j=css.indexOf("*/",i+2);if(j===-1)break;i=j+1;lastPos=i+1;isParenthesisOpen=false}else if(c==="("){isParenthesisOpen=true}else if(c===")"){isParenthesisOpen=false}else if(c===";"){if(isParenthesisOpen){}else{addNewAttr()}}else if(c==="\n"){addNewAttr()}}return _.trim(retCSS)}module.exports=parseStyle},{"./util":10}],10:[function(require,module,exports){module.exports={indexOf:function(arr,item){var i,j;if(Array.prototype.indexOf){return arr.indexOf(item)}for(i=0,j=arr.length;i<j;i++){if(arr[i]===item){return i}}return-1},forEach:function(arr,fn,scope){var i,j;if(Array.prototype.forEach){return arr.forEach(fn,scope)}for(i=0,j=arr.length;i<j;i++){fn.call(scope,arr[i],i,arr)}},trim:function(str){if(String.prototype.trim){return str.trim()}return str.replace(/(^\s*)|(\s*$)/g,"")},trimRight:function(str){if(String.prototype.trimRight){return str.trimRight()}return str.replace(/(\s*$)/g,"")}}},{}]},{},[2]);
\ No newline at end of file
diff --git a/node_modules/xss/lib/cli.js b/node_modules/xss/lib/cli.js
deleted file mode 100644
index 4aa075e..0000000
--- a/node_modules/xss/lib/cli.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/**
- * command line tool
- *
- * @author Zongmin Lei<leizongmin@gmail.com>
- */
-
-var xss = require("./");
-var readline = require("readline");
-
-var rl = readline.createInterface({
-  input: process.stdin,
-  output: process.stdout
-});
-
-console.log('Enter a blank line to do xss(), enter "@quit" to exit.\n');
-
-function take(c, n) {
-  var ret = "";
-  for (var i = 0; i < n; i++) {
-    ret += c;
-  }
-  return ret;
-}
-
-function setPrompt(line) {
-  line = line.toString();
-  rl.setPrompt("[" + line + "]" + take(" ", 5 - line.length));
-  rl.prompt();
-}
-
-setPrompt(1);
-
-var html = [];
-rl.on("line", function(line) {
-  if (line === "@quit") return process.exit();
-  if (line === "") {
-    console.log("");
-    console.log(xss(html.join("\r\n")));
-    console.log("");
-    html = [];
-  } else {
-    html.push(line);
-  }
-  setPrompt(html.length + 1);
-});
diff --git a/node_modules/xss/lib/default.js b/node_modules/xss/lib/default.js
deleted file mode 100644
index 1452ed3..0000000
--- a/node_modules/xss/lib/default.js
+++ /dev/null
@@ -1,415 +0,0 @@
-/**
- * default settings
- *
- * @author Zongmin Lei<leizongmin@gmail.com>
- */
-
-var FilterCSS = require("cssfilter").FilterCSS;
-var getDefaultCSSWhiteList = require("cssfilter").getDefaultWhiteList;
-var _ = require("./util");
-
-function getDefaultWhiteList() {
-  return {
-    a: ["target", "href", "title"],
-    abbr: ["title"],
-    address: [],
-    area: ["shape", "coords", "href", "alt"],
-    article: [],
-    aside: [],
-    audio: ["autoplay", "controls", "loop", "preload", "src"],
-    b: [],
-    bdi: ["dir"],
-    bdo: ["dir"],
-    big: [],
-    blockquote: ["cite"],
-    br: [],
-    caption: [],
-    center: [],
-    cite: [],
-    code: [],
-    col: ["align", "valign", "span", "width"],
-    colgroup: ["align", "valign", "span", "width"],
-    dd: [],
-    del: ["datetime"],
-    details: ["open"],
-    div: [],
-    dl: [],
-    dt: [],
-    em: [],
-    font: ["color", "size", "face"],
-    footer: [],
-    h1: [],
-    h2: [],
-    h3: [],
-    h4: [],
-    h5: [],
-    h6: [],
-    header: [],
-    hr: [],
-    i: [],
-    img: ["src", "alt", "title", "width", "height"],
-    ins: ["datetime"],
-    li: [],
-    mark: [],
-    nav: [],
-    ol: [],
-    p: [],
-    pre: [],
-    s: [],
-    section: [],
-    small: [],
-    span: [],
-    sub: [],
-    sup: [],
-    strong: [],
-    table: ["width", "border", "align", "valign"],
-    tbody: ["align", "valign"],
-    td: ["width", "rowspan", "colspan", "align", "valign"],
-    tfoot: ["align", "valign"],
-    th: ["width", "rowspan", "colspan", "align", "valign"],
-    thead: ["align", "valign"],
-    tr: ["rowspan", "align", "valign"],
-    tt: [],
-    u: [],
-    ul: [],
-    video: ["autoplay", "controls", "loop", "preload", "src", "height", "width"]
-  };
-}
-
-var defaultCSSFilter = new FilterCSS();
-
-/**
- * default onTag function
- *
- * @param {String} tag
- * @param {String} html
- * @param {Object} options
- * @return {String}
- */
-function onTag(tag, html, options) {
-  // do nothing
-}
-
-/**
- * default onIgnoreTag function
- *
- * @param {String} tag
- * @param {String} html
- * @param {Object} options
- * @return {String}
- */
-function onIgnoreTag(tag, html, options) {
-  // do nothing
-}
-
-/**
- * default onTagAttr function
- *
- * @param {String} tag
- * @param {String} name
- * @param {String} value
- * @return {String}
- */
-function onTagAttr(tag, name, value) {
-  // do nothing
-}
-
-/**
- * default onIgnoreTagAttr function
- *
- * @param {String} tag
- * @param {String} name
- * @param {String} value
- * @return {String}
- */
-function onIgnoreTagAttr(tag, name, value) {
-  // do nothing
-}
-
-/**
- * default escapeHtml function
- *
- * @param {String} html
- */
-function escapeHtml(html) {
-  return html.replace(REGEXP_LT, "&lt;").replace(REGEXP_GT, "&gt;");
-}
-
-/**
- * default safeAttrValue function
- *
- * @param {String} tag
- * @param {String} name
- * @param {String} value
- * @param {Object} cssFilter
- * @return {String}
- */
-function safeAttrValue(tag, name, value, cssFilter) {
-  // unescape attribute value firstly
-  value = friendlyAttrValue(value);
-
-  if (name === "href" || name === "src") {
-    // filter `href` and `src` attribute
-    // only allow the value that starts with `http://` | `https://` | `mailto:` | `/` | `#`
-    value = _.trim(value);
-    if (value === "#") return "#";
-    if (
-      !(
-        value.substr(0, 7) === "http://" ||
-        value.substr(0, 8) === "https://" ||
-        value.substr(0, 7) === "mailto:" ||
-        value.substr(0, 4) === "tel:" ||
-        value[0] === "#" ||
-        value[0] === "/"
-      )
-    ) {
-      return "";
-    }
-  } else if (name === "background") {
-    // filter `background` attribute (maybe no use)
-    // `javascript:`
-    REGEXP_DEFAULT_ON_TAG_ATTR_4.lastIndex = 0;
-    if (REGEXP_DEFAULT_ON_TAG_ATTR_4.test(value)) {
-      return "";
-    }
-  } else if (name === "style") {
-    // `expression()`
-    REGEXP_DEFAULT_ON_TAG_ATTR_7.lastIndex = 0;
-    if (REGEXP_DEFAULT_ON_TAG_ATTR_7.test(value)) {
-      return "";
-    }
-    // `url()`
-    REGEXP_DEFAULT_ON_TAG_ATTR_8.lastIndex = 0;
-    if (REGEXP_DEFAULT_ON_TAG_ATTR_8.test(value)) {
-      REGEXP_DEFAULT_ON_TAG_ATTR_4.lastIndex = 0;
-      if (REGEXP_DEFAULT_ON_TAG_ATTR_4.test(value)) {
-        return "";
-      }
-    }
-    if (cssFilter !== false) {
-      cssFilter = cssFilter || defaultCSSFilter;
-      value = cssFilter.process(value);
-    }
-  }
-
-  // escape `<>"` before returns
-  value = escapeAttrValue(value);
-  return value;
-}
-
-// RegExp list
-var REGEXP_LT = /</g;
-var REGEXP_GT = />/g;
-var REGEXP_QUOTE = /"/g;
-var REGEXP_QUOTE_2 = /&quot;/g;
-var REGEXP_ATTR_VALUE_1 = /&#([a-zA-Z0-9]*);?/gim;
-var REGEXP_ATTR_VALUE_COLON = /&colon;?/gim;
-var REGEXP_ATTR_VALUE_NEWLINE = /&newline;?/gim;
-var REGEXP_DEFAULT_ON_TAG_ATTR_3 = /\/\*|\*\//gm;
-var REGEXP_DEFAULT_ON_TAG_ATTR_4 = /((j\s*a\s*v\s*a|v\s*b|l\s*i\s*v\s*e)\s*s\s*c\s*r\s*i\s*p\s*t\s*|m\s*o\s*c\s*h\s*a)\:/gi;
-var REGEXP_DEFAULT_ON_TAG_ATTR_5 = /^[\s"'`]*(d\s*a\s*t\s*a\s*)\:/gi;
-var REGEXP_DEFAULT_ON_TAG_ATTR_6 = /^[\s"'`]*(d\s*a\s*t\s*a\s*)\:\s*image\//gi;
-var REGEXP_DEFAULT_ON_TAG_ATTR_7 = /e\s*x\s*p\s*r\s*e\s*s\s*s\s*i\s*o\s*n\s*\(.*/gi;
-var REGEXP_DEFAULT_ON_TAG_ATTR_8 = /u\s*r\s*l\s*\(.*/gi;
-
-/**
- * escape doube quote
- *
- * @param {String} str
- * @return {String} str
- */
-function escapeQuote(str) {
-  return str.replace(REGEXP_QUOTE, "&quot;");
-}
-
-/**
- * unescape double quote
- *
- * @param {String} str
- * @return {String} str
- */
-function unescapeQuote(str) {
-  return str.replace(REGEXP_QUOTE_2, '"');
-}
-
-/**
- * escape html entities
- *
- * @param {String} str
- * @return {String}
- */
-function escapeHtmlEntities(str) {
-  return str.replace(REGEXP_ATTR_VALUE_1, function replaceUnicode(str, code) {
-    return code[0] === "x" || code[0] === "X"
-      ? String.fromCharCode(parseInt(code.substr(1), 16))
-      : String.fromCharCode(parseInt(code, 10));
-  });
-}
-
-/**
- * escape html5 new danger entities
- *
- * @param {String} str
- * @return {String}
- */
-function escapeDangerHtml5Entities(str) {
-  return str
-    .replace(REGEXP_ATTR_VALUE_COLON, ":")
-    .replace(REGEXP_ATTR_VALUE_NEWLINE, " ");
-}
-
-/**
- * clear nonprintable characters
- *
- * @param {String} str
- * @return {String}
- */
-function clearNonPrintableCharacter(str) {
-  var str2 = "";
-  for (var i = 0, len = str.length; i < len; i++) {
-    str2 += str.charCodeAt(i) < 32 ? " " : str.charAt(i);
-  }
-  return _.trim(str2);
-}
-
-/**
- * get friendly attribute value
- *
- * @param {String} str
- * @return {String}
- */
-function friendlyAttrValue(str) {
-  str = unescapeQuote(str);
-  str = escapeHtmlEntities(str);
-  str = escapeDangerHtml5Entities(str);
-  str = clearNonPrintableCharacter(str);
-  return str;
-}
-
-/**
- * unescape attribute value
- *
- * @param {String} str
- * @return {String}
- */
-function escapeAttrValue(str) {
-  str = escapeQuote(str);
-  str = escapeHtml(str);
-  return str;
-}
-
-/**
- * `onIgnoreTag` function for removing all the tags that are not in whitelist
- */
-function onIgnoreTagStripAll() {
-  return "";
-}
-
-/**
- * remove tag body
- * specify a `tags` list, if the tag is not in the `tags` list then process by the specify function (optional)
- *
- * @param {array} tags
- * @param {function} next
- */
-function StripTagBody(tags, next) {
-  if (typeof next !== "function") {
-    next = function() {};
-  }
-
-  var isRemoveAllTag = !Array.isArray(tags);
-  function isRemoveTag(tag) {
-    if (isRemoveAllTag) return true;
-    return _.indexOf(tags, tag) !== -1;
-  }
-
-  var removeList = [];
-  var posStart = false;
-
-  return {
-    onIgnoreTag: function(tag, html, options) {
-      if (isRemoveTag(tag)) {
-        if (options.isClosing) {
-          var ret = "[/removed]";
-          var end = options.position + ret.length;
-          removeList.push([
-            posStart !== false ? posStart : options.position,
-            end
-          ]);
-          posStart = false;
-          return ret;
-        } else {
-          if (!posStart) {
-            posStart = options.position;
-          }
-          return "[removed]";
-        }
-      } else {
-        return next(tag, html, options);
-      }
-    },
-    remove: function(html) {
-      var rethtml = "";
-      var lastPos = 0;
-      _.forEach(removeList, function(pos) {
-        rethtml += html.slice(lastPos, pos[0]);
-        lastPos = pos[1];
-      });
-      rethtml += html.slice(lastPos);
-      return rethtml;
-    }
-  };
-}
-
-/**
- * remove html comments
- *
- * @param {String} html
- * @return {String}
- */
-function stripCommentTag(html) {
-  return html.replace(STRIP_COMMENT_TAG_REGEXP, "");
-}
-var STRIP_COMMENT_TAG_REGEXP = /<!--[\s\S]*?-->/g;
-
-/**
- * remove invisible characters
- *
- * @param {String} html
- * @return {String}
- */
-function stripBlankChar(html) {
-  var chars = html.split("");
-  chars = chars.filter(function(char) {
-    var c = char.charCodeAt(0);
-    if (c === 127) return false;
-    if (c <= 31) {
-      if (c === 10 || c === 13) return true;
-      return false;
-    }
-    return true;
-  });
-  return chars.join("");
-}
-
-exports.whiteList = getDefaultWhiteList();
-exports.getDefaultWhiteList = getDefaultWhiteList;
-exports.onTag = onTag;
-exports.onIgnoreTag = onIgnoreTag;
-exports.onTagAttr = onTagAttr;
-exports.onIgnoreTagAttr = onIgnoreTagAttr;
-exports.safeAttrValue = safeAttrValue;
-exports.escapeHtml = escapeHtml;
-exports.escapeQuote = escapeQuote;
-exports.unescapeQuote = unescapeQuote;
-exports.escapeHtmlEntities = escapeHtmlEntities;
-exports.escapeDangerHtml5Entities = escapeDangerHtml5Entities;
-exports.clearNonPrintableCharacter = clearNonPrintableCharacter;
-exports.friendlyAttrValue = friendlyAttrValue;
-exports.escapeAttrValue = escapeAttrValue;
-exports.onIgnoreTagStripAll = onIgnoreTagStripAll;
-exports.StripTagBody = StripTagBody;
-exports.stripCommentTag = stripCommentTag;
-exports.stripBlankChar = stripBlankChar;
-exports.cssFilter = defaultCSSFilter;
-exports.getDefaultCSSWhiteList = getDefaultCSSWhiteList;
diff --git a/node_modules/xss/lib/index.js b/node_modules/xss/lib/index.js
deleted file mode 100644
index e0c1a06..0000000
--- a/node_modules/xss/lib/index.js
+++ /dev/null
@@ -1,40 +0,0 @@
-/**
- * xss
- *
- * @author Zongmin Lei<leizongmin@gmail.com>
- */
-
-var DEFAULT = require("./default");
-var parser = require("./parser");
-var FilterXSS = require("./xss");
-
-/**
- * filter xss function
- *
- * @param {String} html
- * @param {Object} options { whiteList, onTag, onTagAttr, onIgnoreTag, onIgnoreTagAttr, safeAttrValue, escapeHtml }
- * @return {String}
- */
-function filterXSS(html, options) {
-  var xss = new FilterXSS(options);
-  return xss.process(html);
-}
-
-exports = module.exports = filterXSS;
-exports.filterXSS = filterXSS;
-exports.FilterXSS = FilterXSS;
-for (var i in DEFAULT) exports[i] = DEFAULT[i];
-for (var i in parser) exports[i] = parser[i];
-
-// using `xss` on the browser, output `filterXSS` to the globals
-if (typeof window !== "undefined") {
-  window.filterXSS = module.exports;
-}
-
-// using `xss` on the WebWorker, output `filterXSS` to the globals
-function isWorkerEnv() {
-  return typeof self !== 'undefined' && typeof DedicatedWorkerGlobalScope !== 'undefined' && self instanceof DedicatedWorkerGlobalScope;
-}
-if (isWorkerEnv()) {
-  self.filterXSS = module.exports;
-}
diff --git a/node_modules/xss/lib/parser.js b/node_modules/xss/lib/parser.js
deleted file mode 100644
index 7c15def..0000000
--- a/node_modules/xss/lib/parser.js
+++ /dev/null
@@ -1,239 +0,0 @@
-/**
- * Simple HTML Parser
- *
- * @author Zongmin Lei<leizongmin@gmail.com>
- */
-
-var _ = require("./util");
-
-/**
- * get tag name
- *
- * @param {String} html e.g. '<a hef="#">'
- * @return {String}
- */
-function getTagName(html) {
-  var i = _.spaceIndex(html);
-  if (i === -1) {
-    var tagName = html.slice(1, -1);
-  } else {
-    var tagName = html.slice(1, i + 1);
-  }
-  tagName = _.trim(tagName).toLowerCase();
-  if (tagName.slice(0, 1) === "/") tagName = tagName.slice(1);
-  if (tagName.slice(-1) === "/") tagName = tagName.slice(0, -1);
-  return tagName;
-}
-
-/**
- * is close tag?
- *
- * @param {String} html 如：'<a hef="#">'
- * @return {Boolean}
- */
-function isClosing(html) {
-  return html.slice(0, 2) === "</";
-}
-
-/**
- * parse input html and returns processed html
- *
- * @param {String} html
- * @param {Function} onTag e.g. function (sourcePosition, position, tag, html, isClosing)
- * @param {Function} escapeHtml
- * @return {String}
- */
-function parseTag(html, onTag, escapeHtml) {
-  "user strict";
-
-  var rethtml = "";
-  var lastPos = 0;
-  var tagStart = false;
-  var quoteStart = false;
-  var currentPos = 0;
-  var len = html.length;
-  var currentTagName = "";
-  var currentHtml = "";
-
-  for (currentPos = 0; currentPos < len; currentPos++) {
-    var c = html.charAt(currentPos);
-    if (tagStart === false) {
-      if (c === "<") {
-        tagStart = currentPos;
-        continue;
-      }
-    } else {
-      if (quoteStart === false) {
-        if (c === "<") {
-          rethtml += escapeHtml(html.slice(lastPos, currentPos));
-          tagStart = currentPos;
-          lastPos = currentPos;
-          continue;
-        }
-        if (c === ">") {
-          rethtml += escapeHtml(html.slice(lastPos, tagStart));
-          currentHtml = html.slice(tagStart, currentPos + 1);
-          currentTagName = getTagName(currentHtml);
-          rethtml += onTag(
-            tagStart,
-            rethtml.length,
-            currentTagName,
-            currentHtml,
-            isClosing(currentHtml)
-          );
-          lastPos = currentPos + 1;
-          tagStart = false;
-          continue;
-        }
-        if ((c === '"' || c === "'") && html.charAt(currentPos - 1) === "=") {
-          quoteStart = c;
-          continue;
-        }
-      } else {
-        if (c === quoteStart) {
-          quoteStart = false;
-          continue;
-        }
-      }
-    }
-  }
-  if (lastPos < html.length) {
-    rethtml += escapeHtml(html.substr(lastPos));
-  }
-
-  return rethtml;
-}
-
-var REGEXP_ILLEGAL_ATTR_NAME = /[^a-zA-Z0-9_:\.\-]/gim;
-
-/**
- * parse input attributes and returns processed attributes
- *
- * @param {String} html e.g. `href="#" target="_blank"`
- * @param {Function} onAttr e.g. `function (name, value)`
- * @return {String}
- */
-function parseAttr(html, onAttr) {
-  "user strict";
-
-  var lastPos = 0;
-  var retAttrs = [];
-  var tmpName = false;
-  var len = html.length;
-
-  function addAttr(name, value) {
-    name = _.trim(name);
-    name = name.replace(REGEXP_ILLEGAL_ATTR_NAME, "").toLowerCase();
-    if (name.length < 1) return;
-    var ret = onAttr(name, value || "");
-    if (ret) retAttrs.push(ret);
-  }
-
-  // 逐个分析字符
-  for (var i = 0; i < len; i++) {
-    var c = html.charAt(i);
-    var v, j;
-    if (tmpName === false && c === "=") {
-      tmpName = html.slice(lastPos, i);
-      lastPos = i + 1;
-      continue;
-    }
-    if (tmpName !== false) {
-      if (
-        i === lastPos &&
-        (c === '"' || c === "'") &&
-        html.charAt(i - 1) === "="
-      ) {
-        j = html.indexOf(c, i + 1);
-        if (j === -1) {
-          break;
-        } else {
-          v = _.trim(html.slice(lastPos + 1, j));
-          addAttr(tmpName, v);
-          tmpName = false;
-          i = j;
-          lastPos = i + 1;
-          continue;
-        }
-      }
-    }
-    if (/\s|\n|\t/.test(c)) {
-      html = html.replace(/\s|\n|\t/g, " ");
-      if (tmpName === false) {
-        j = findNextEqual(html, i);
-        if (j === -1) {
-          v = _.trim(html.slice(lastPos, i));
-          addAttr(v);
-          tmpName = false;
-          lastPos = i + 1;
-          continue;
-        } else {
-          i = j - 1;
-          continue;
-        }
-      } else {
-        j = findBeforeEqual(html, i - 1);
-        if (j === -1) {
-          v = _.trim(html.slice(lastPos, i));
-          v = stripQuoteWrap(v);
-          addAttr(tmpName, v);
-          tmpName = false;
-          lastPos = i + 1;
-          continue;
-        } else {
-          continue;
-        }
-      }
-    }
-  }
-
-  if (lastPos < html.length) {
-    if (tmpName === false) {
-      addAttr(html.slice(lastPos));
-    } else {
-      addAttr(tmpName, stripQuoteWrap(_.trim(html.slice(lastPos))));
-    }
-  }
-
-  return _.trim(retAttrs.join(" "));
-}
-
-function findNextEqual(str, i) {
-  for (; i < str.length; i++) {
-    var c = str[i];
-    if (c === " ") continue;
-    if (c === "=") return i;
-    return -1;
-  }
-}
-
-function findBeforeEqual(str, i) {
-  for (; i > 0; i--) {
-    var c = str[i];
-    if (c === " ") continue;
-    if (c === "=") return i;
-    return -1;
-  }
-}
-
-function isQuoteWrapString(text) {
-  if (
-    (text[0] === '"' && text[text.length - 1] === '"') ||
-    (text[0] === "'" && text[text.length - 1] === "'")
-  ) {
-    return true;
-  } else {
-    return false;
-  }
-}
-
-function stripQuoteWrap(text) {
-  if (isQuoteWrapString(text)) {
-    return text.substr(1, text.length - 2);
-  } else {
-    return text;
-  }
-}
-
-exports.parseTag = parseTag;
-exports.parseAttr = parseAttr;
diff --git a/node_modules/xss/lib/util.js b/node_modules/xss/lib/util.js
deleted file mode 100644
index 1dcd7fa..0000000
--- a/node_modules/xss/lib/util.js
+++ /dev/null
@@ -1,34 +0,0 @@
-module.exports = {
-  indexOf: function(arr, item) {
-    var i, j;
-    if (Array.prototype.indexOf) {
-      return arr.indexOf(item);
-    }
-    for (i = 0, j = arr.length; i < j; i++) {
-      if (arr[i] === item) {
-        return i;
-      }
-    }
-    return -1;
-  },
-  forEach: function(arr, fn, scope) {
-    var i, j;
-    if (Array.prototype.forEach) {
-      return arr.forEach(fn, scope);
-    }
-    for (i = 0, j = arr.length; i < j; i++) {
-      fn.call(scope, arr[i], i, arr);
-    }
-  },
-  trim: function(str) {
-    if (String.prototype.trim) {
-      return str.trim();
-    }
-    return str.replace(/(^\s*)|(\s*$)/g, "");
-  },
-  spaceIndex: function(str) {
-    var reg = /\s|\n|\t/;
-    var match = reg.exec(str);
-    return match ? match.index : -1;
-  }
-};
diff --git a/node_modules/xss/lib/xss.js b/node_modules/xss/lib/xss.js
deleted file mode 100644
index 74d2e42..0000000
--- a/node_modules/xss/lib/xss.js
+++ /dev/null
@@ -1,211 +0,0 @@
-/**
- * filter xss
- *
- * @author Zongmin Lei<leizongmin@gmail.com>
- */
-
-var FilterCSS = require("cssfilter").FilterCSS;
-var DEFAULT = require("./default");
-var parser = require("./parser");
-var parseTag = parser.parseTag;
-var parseAttr = parser.parseAttr;
-var _ = require("./util");
-
-/**
- * returns `true` if the input value is `undefined` or `null`
- *
- * @param {Object} obj
- * @return {Boolean}
- */
-function isNull(obj) {
-  return obj === undefined || obj === null;
-}
-
-/**
- * get attributes for a tag
- *
- * @param {String} html
- * @return {Object}
- *   - {String} html
- *   - {Boolean} closing
- */
-function getAttrs(html) {
-  var i = _.spaceIndex(html);
-  if (i === -1) {
-    return {
-      html: "",
-      closing: html[html.length - 2] === "/"
-    };
-  }
-  html = _.trim(html.slice(i + 1, -1));
-  var isClosing = html[html.length - 1] === "/";
-  if (isClosing) html = _.trim(html.slice(0, -1));
-  return {
-    html: html,
-    closing: isClosing
-  };
-}
-
-/**
- * shallow copy
- *
- * @param {Object} obj
- * @return {Object}
- */
-function shallowCopyObject(obj) {
-  var ret = {};
-  for (var i in obj) {
-    ret[i] = obj[i];
-  }
-  return ret;
-}
-
-/**
- * FilterXSS class
- *
- * @param {Object} options
- *        whiteList, onTag, onTagAttr, onIgnoreTag,
- *        onIgnoreTagAttr, safeAttrValue, escapeHtml
- *        stripIgnoreTagBody, allowCommentTag, stripBlankChar
- *        css{whiteList, onAttr, onIgnoreAttr} `css=false` means don't use `cssfilter`
- */
-function FilterXSS(options) {
-  options = shallowCopyObject(options || {});
-
-  if (options.stripIgnoreTag) {
-    if (options.onIgnoreTag) {
-      console.error(
-        'Notes: cannot use these two options "stripIgnoreTag" and "onIgnoreTag" at the same time'
-      );
-    }
-    options.onIgnoreTag = DEFAULT.onIgnoreTagStripAll;
-  }
-
-  options.whiteList = options.whiteList || DEFAULT.whiteList;
-  options.onTag = options.onTag || DEFAULT.onTag;
-  options.onTagAttr = options.onTagAttr || DEFAULT.onTagAttr;
-  options.onIgnoreTag = options.onIgnoreTag || DEFAULT.onIgnoreTag;
-  options.onIgnoreTagAttr = options.onIgnoreTagAttr || DEFAULT.onIgnoreTagAttr;
-  options.safeAttrValue = options.safeAttrValue || DEFAULT.safeAttrValue;
-  options.escapeHtml = options.escapeHtml || DEFAULT.escapeHtml;
-  this.options = options;
-
-  if (options.css === false) {
-    this.cssFilter = false;
-  } else {
-    options.css = options.css || {};
-    this.cssFilter = new FilterCSS(options.css);
-  }
-}
-
-/**
- * start process and returns result
- *
- * @param {String} html
- * @return {String}
- */
-FilterXSS.prototype.process = function(html) {
-  // compatible with the input
-  html = html || "";
-  html = html.toString();
-  if (!html) return "";
-
-  var me = this;
-  var options = me.options;
-  var whiteList = options.whiteList;
-  var onTag = options.onTag;
-  var onIgnoreTag = options.onIgnoreTag;
-  var onTagAttr = options.onTagAttr;
-  var onIgnoreTagAttr = options.onIgnoreTagAttr;
-  var safeAttrValue = options.safeAttrValue;
-  var escapeHtml = options.escapeHtml;
-  var cssFilter = me.cssFilter;
-
-  // remove invisible characters
-  if (options.stripBlankChar) {
-    html = DEFAULT.stripBlankChar(html);
-  }
-
-  // remove html comments
-  if (!options.allowCommentTag) {
-    html = DEFAULT.stripCommentTag(html);
-  }
-
-  // if enable stripIgnoreTagBody
-  var stripIgnoreTagBody = false;
-  if (options.stripIgnoreTagBody) {
-    var stripIgnoreTagBody = DEFAULT.StripTagBody(
-      options.stripIgnoreTagBody,
-      onIgnoreTag
-    );
-    onIgnoreTag = stripIgnoreTagBody.onIgnoreTag;
-  }
-
-  var retHtml = parseTag(
-    html,
-    function(sourcePosition, position, tag, html, isClosing) {
-      var info = {
-        sourcePosition: sourcePosition,
-        position: position,
-        isClosing: isClosing,
-        isWhite: whiteList.hasOwnProperty(tag)
-      };
-
-      // call `onTag()`
-      var ret = onTag(tag, html, info);
-      if (!isNull(ret)) return ret;
-
-      if (info.isWhite) {
-        if (info.isClosing) {
-          return "</" + tag + ">";
-        }
-
-        var attrs = getAttrs(html);
-        var whiteAttrList = whiteList[tag];
-        var attrsHtml = parseAttr(attrs.html, function(name, value) {
-          // call `onTagAttr()`
-          var isWhiteAttr = _.indexOf(whiteAttrList, name) !== -1;
-          var ret = onTagAttr(tag, name, value, isWhiteAttr);
-          if (!isNull(ret)) return ret;
-
-          if (isWhiteAttr) {
-            // call `safeAttrValue()`
-            value = safeAttrValue(tag, name, value, cssFilter);
-            if (value) {
-              return name + '="' + value + '"';
-            } else {
-              return name;
-            }
-          } else {
-            // call `onIgnoreTagAttr()`
-            var ret = onIgnoreTagAttr(tag, name, value, isWhiteAttr);
-            if (!isNull(ret)) return ret;
-            return;
-          }
-        });
-
-        // build new tag html
-        var html = "<" + tag;
-        if (attrsHtml) html += " " + attrsHtml;
-        if (attrs.closing) html += " /";
-        html += ">";
-        return html;
-      } else {
-        // call `onIgnoreTag()`
-        var ret = onIgnoreTag(tag, html, info);
-        if (!isNull(ret)) return ret;
-        return escapeHtml(html);
-      }
-    },
-    escapeHtml
-  );
-
-  // if enable stripIgnoreTagBody
-  if (stripIgnoreTagBody) {
-    retHtml = stripIgnoreTagBody.remove(retHtml);
-  }
-
-  return retHtml;
-};
-
-module.exports = FilterXSS;
diff --git a/node_modules/xss/package.json b/node_modules/xss/package.json
deleted file mode 100644
index 8caf468..0000000
--- a/node_modules/xss/package.json
+++ /dev/null
@@ -1,92 +0,0 @@
-{
-  "_from": "xss",
-  "_id": "xss@1.0.6",
-  "_inBundle": false,
-  "_integrity": "sha512-6Q9TPBeNyoTRxgZFk5Ggaepk/4vUOYdOsIUYvLehcsIZTFjaavbVnsuAkLA5lIFuug5hw8zxcB9tm01gsjph2A==",
-  "_location": "/xss",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "tag",
-    "registry": true,
-    "raw": "xss",
-    "name": "xss",
-    "escapedName": "xss",
-    "rawSpec": "",
-    "saveSpec": null,
-    "fetchSpec": "latest"
-  },
-  "_requiredBy": [
-    "#USER",
-    "/"
-  ],
-  "_resolved": "https://registry.npmjs.org/xss/-/xss-1.0.6.tgz",
-  "_shasum": "eaf11e9fc476e3ae289944a1009efddd8a124b51",
-  "_spec": "xss",
-  "_where": "/home/cargova/projects/beziapp.github.io",
-  "author": {
-    "name": "Zongmin Lei",
-    "email": "leizongmin@gmail.com",
-    "url": "http://ucdok.com"
-  },
-  "bin": {
-    "xss": "./bin/xss"
-  },
-  "bugs": {
-    "url": "https://github.com/leizongmin/js-xss/issues"
-  },
-  "bundleDependencies": false,
-  "dependencies": {
-    "commander": "^2.9.0",
-    "cssfilter": "0.0.10"
-  },
-  "deprecated": false,
-  "description": "Sanitize untrusted HTML (to prevent XSS) with a configuration specified by a Whitelist",
-  "devDependencies": {
-    "browserify": "^14.1.0",
-    "coveralls": "^3.0.0",
-    "debug": "^3.1.0",
-    "istanbul": "^0.4.3",
-    "mocha": "^4.0.1",
-    "uglify-js": "^3.0.14"
-  },
-  "engines": {
-    "node": ">= 0.10.0"
-  },
-  "files": [
-    "lib",
-    "bin/xss",
-    "dist",
-    "typings/*.d.ts"
-  ],
-  "homepage": "https://github.com/leizongmin/js-xss",
-  "keywords": [
-    "sanitization",
-    "xss",
-    "sanitize",
-    "sanitisation",
-    "input",
-    "security",
-    "escape",
-    "encode",
-    "filter",
-    "validator",
-    "html",
-    "injection",
-    "whitelist"
-  ],
-  "license": "MIT",
-  "main": "./lib/index.js",
-  "name": "xss",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/leizongmin/js-xss.git"
-  },
-  "scripts": {
-    "build": "./bin/build",
-    "prepublish": "npm run test && npm run build",
-    "test": "export DEBUG=xss:* && mocha -t 5000",
-    "test-cov": "export DEBUG=xss:* && istanbul cover _mocha --report lcovonly -- -t 5000 -R spec && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./coverage"
-  },
-  "typings": "./typings/xss.d.ts",
-  "version": "1.0.6"
-}
diff --git a/node_modules/xss/typings/xss.d.ts b/node_modules/xss/typings/xss.d.ts
deleted file mode 100644
index 1f6f2ca..0000000
--- a/node_modules/xss/typings/xss.d.ts
+++ /dev/null
@@ -1,189 +0,0 @@
-/**
- * xss
- *
- * @author Zongmin Lei<leizongmin@gmail.com>
- */
-
-declare global {
-  function filterXSS(html: string, options?: IFilterXSSOptions): string;
-
-  namespace XSS {
-    export interface IFilterXSSOptions {
-      whiteList?: IWhiteList;
-      onTag?: OnTagHandler;
-      onTagAttr?: OnTagAttrHandler;
-      onIgnoreTag?: OnTagHandler;
-      onIgnoreTagAttr?: OnTagAttrHandler;
-      safeAttrValue?: SafeAttrValueHandler;
-      escapeHtml?: EscapeHandler;
-      stripIgnoreTag?: boolean;
-      stripIgnoreTagBody?: boolean | string[];
-      allowCommentTag?: boolean;
-      stripBlankChar?: boolean;
-      css?: {} | boolean;
-    }
-
-    interface IWhiteList {
-      a?: string[];
-      abbr?: string[];
-      address?: string[];
-      area?: string[];
-      article?: string[];
-      aside?: string[];
-      audio?: string[];
-      b?: string[];
-      bdi?: string[];
-      bdo?: string[];
-      big?: string[];
-      blockquote?: string[];
-      br?: string[];
-      caption?: string[];
-      center?: string[];
-      cite?: string[];
-      code?: string[];
-      col?: string[];
-      colgroup?: string[];
-      dd?: string[];
-      del?: string[];
-      details?: string[];
-      div?: string[];
-      dl?: string[];
-      dt?: string[];
-      em?: string[];
-      font?: string[];
-      footer?: string[];
-      h1?: string[];
-      h2?: string[];
-      h3?: string[];
-      h4?: string[];
-      h5?: string[];
-      h6?: string[];
-      header?: string[];
-      hr?: string[];
-      i?: string[];
-      img?: string[];
-      ins?: string[];
-      li?: string[];
-      mark?: string[];
-      nav?: string[];
-      ol?: string[];
-      p?: string[];
-      pre?: string[];
-      s?: string[];
-      section?: string[];
-      small?: string[];
-      span?: string[];
-      sub?: string[];
-      sup?: string[];
-      strong?: string[];
-      table?: string[];
-      tbody?: string[];
-      td?: string[];
-      tfoot?: string[];
-      th?: string[];
-      thead?: string[];
-      tr?: string[];
-      tt?: string[];
-      u?: string[];
-      ul?: string[];
-      video?: string[];
-    }
-
-    type OnTagHandler = (
-      tag: string,
-      html: string,
-      options: {}
-    ) => string | void;
-
-    type OnTagAttrHandler = (
-      tag: string,
-      name: string,
-      value: string,
-      isWhiteAttr: boolean
-    ) => string | void;
-
-    type SafeAttrValueHandler = (
-      tag: string,
-      name: string,
-      value: string,
-      cssFilter: ICSSFilter
-    ) => string;
-
-    type EscapeHandler = (str: string) => string;
-
-    interface ICSSFilter {
-      process(value: string): string;
-    }
-  }
-}
-
-export interface IFilterXSSOptions extends XSS.IFilterXSSOptions {}
-
-export interface IWhiteList extends XSS.IWhiteList {}
-
-export type OnTagHandler = XSS.OnTagHandler;
-
-export type OnTagAttrHandler = XSS.OnTagAttrHandler;
-
-export type SafeAttrValueHandler = XSS.SafeAttrValueHandler;
-
-export type EscapeHandler = XSS.EscapeHandler;
-
-export interface ICSSFilter extends XSS.ICSSFilter {}
-
-export function StripTagBody(
-  tags: string[],
-  next: () => void
-): {
-  onIgnoreTag(
-    tag: string,
-    html: string,
-    options: {
-      position: number;
-      isClosing: boolean;
-    }
-  ): string;
-  remove(html: string): string;
-};
-
-export class FilterXSS {
-  constructor(options?: IFilterXSSOptions);
-  process(html: string): string;
-}
-
-export function filterXSS(html: string, options?: IFilterXSSOptions): string;
-export function parseTag(
-  html: string,
-  onTag: (
-    sourcePosition: number,
-    position: number,
-    tag: string,
-    html: string,
-    isClosing: boolean
-  ) => string,
-  escapeHtml: EscapeHandler
-): string;
-export function parseAttr(
-  html: string,
-  onAttr: (name: string, value: string) => string
-): string;
-export const whiteList: IWhiteList;
-export function getDefaultWhiteList(): IWhiteList;
-export const onTag: OnTagHandler;
-export const onIgnoreTag: OnTagHandler;
-export const onTagAttr: OnTagAttrHandler;
-export const onIgnoreTagAttr: OnTagAttrHandler;
-export const safeAttrValue: SafeAttrValueHandler;
-export const escapeHtml: EscapeHandler;
-export const escapeQuote: EscapeHandler;
-export const unescapeQuote: EscapeHandler;
-export const escapeHtmlEntities: EscapeHandler;
-export const escapeDangerHtml5Entities: EscapeHandler;
-export const clearNonPrintableCharacter: EscapeHandler;
-export const friendlyAttrValue: EscapeHandler;
-export const escapeAttrValue: EscapeHandler;
-export function onIgnoreTagStripAll(): string;
-export const stripCommentTag: EscapeHandler;
-export const stripBlankChar: EscapeHandler;
-export const cssFilter: ICSSFilter;
-export function getDefaultCSSWhiteList(): ICSSFilter;