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Viewing file:     getSafeBodyFromHTML.js (1.12 KB)      -rw-r--r--

/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @format
 * 
 * @emails oncall+draft_js
 */
'use strict';

var UserAgent = require("fbjs/lib/UserAgent");

var invariant = require("fbjs/lib/invariant");

var isOldIE = UserAgent.isBrowser('IE <= 9'); // Provides a dom node that will not execute scripts
// https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation.createHTMLDocument
// https://developer.mozilla.org/en-US/Add-ons/Code_snippets/HTML_to_DOM

function getSafeBodyFromHTML(html) {
  var doc;
  var root = null; // Provides a safe context

  if (!isOldIE && document.implementation && document.implementation.createHTMLDocument) {
    doc = document.implementation.createHTMLDocument('foo');
    !doc.documentElement ? process.env.NODE_ENV !== "production" ? invariant(false, 'Missing doc.documentElement') : invariant(false) : void 0;
    doc.documentElement.innerHTML = html;
    root = doc.getElementsByTagName('body')[0];
  }

  return root;
}

module.exports = getSafeBodyFromHTML;