4 https://bugzilla.mozilla.org/show_bug.cgi?id=524175
7 <title>Test for Bug
524175</title>
8 <script src=
"/tests/SimpleTest/SimpleTest.js"></script>
9 <link rel=
"stylesheet" type=
"text/css" href=
"/tests/SimpleTest/test.css"/>
11 span::before ::before {}
15 <a target=
"_blank" href=
"https://bugzilla.mozilla.org/show_bug.cgi?id=524175">Mozilla Bug
524175</a>
17 <div id=
"content" style=
"display: none">
21 <script type=
"application/javascript">
23 /** Test for Bug
524175 **/
24 is(document.styleSheets[
1].cssRules.length,
0,
"Shouldn't have parsed that rule");