dom/base/test/test_messageChannel_pref.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <!--
   4 https://bugzilla.mozilla.org/show_bug.cgi?id=677638
   5 -->
   6 <head>
   7   <meta charset="utf-8">
   8   <title>Test for Bug 677638 - pref</title>
   9   <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  10   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  11 </head>
  12 <body>
  13 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=677638">Mozilla Bug 677638</a>
  14 <div id="content"></div>
  15 <pre id="test">
  16 </pre>
  17   <script type="application/javascript">
  18
  19   function runTest(what) {
  20     var status;
  21     try {
  22       status = MessageChannel;
  23       ok(what, "Should MessageChannel exist?");
  24     } catch(e) {
  25       ok(!what, "Should MessageChannel exist?");
  26     }
  27   }
  28
  29   SimpleTest.waitForExplicitFinish();
  30
  31   runTest(false);
  32   SpecialPowers.pushPrefEnv({"set": [["dom.messageChannel.enabled", true]]},
  33                             function() { runTest(true); SimpleTest.finish(); });
  34   </script>
  35 </body>
  36 </html>