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<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");