author Cristian Tuns <>
Fri, 24 Sep 2021 14:42:22 -0400
changeset 593147 0b4005ebc9776ff43d99d1427c1a1fd2e14d9a44
parent 469640 c9c0c6f2eed54a187e124942e53c3660b4cf17d8
permissions -rw-r--r--
Backed out changeset dd075a074e45 (bug 1730518) for causing content crashes (bug 1732479). CLOSED TREE

  <title>Test for Bug 517224</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  <script type="application/ecmascript" src="bug517224.sjs?reset"></script>
  <style type="text/css">

  p#display { background: url(bug517224.sjs?image); }
  p#display { background-image: none; }

<a target="_blank" href="">Mozilla Bug 517224</a>
<p id="display">Element with overridden background</p>
<pre id="test">
<script type="application/javascript">

/** Test for Bug 517224 **/

// Test that we don't load background images for style rules that are
// always overridden.

// Make sure the style has been computed
var bi =
  getComputedStyle(document.getElementById('display'), "").backgroundImage;
window.onload = run;

function run()
  var script = document.createElement("script");
  script.setAttribute("src", "bug517224.sjs?result");