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<!--
https : / / bugzilla . mozilla . org / show_bug . cgi ? id = 677638
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"utf-8" >
<
title >Test for Bug
677638 - basic support</
title >
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script src=
"/tests/SimpleTest/SimpleTest.js" ></
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"text/css" href=
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<
a target=
"_blank" href=
"https://bugzilla.mozilla.org/show_bug.cgi?id=677638 " >Mozill
a Bug 677638 </a >
<p id="display" ></p >
<div id="content" style ="display: none" >
<iframe name="x" id="x" ></iframe >
<iframe name="y" id="y" ></iframe >
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<pre id="test" >
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<script type="application/javascript" >
/** Test for Bug 677638 */
var a = new MessageChannel();
ok(a , "MessageChannel created" );
var port1 = a .port1;
ok(port1, "MessageChannel.port1 exists" );
is(port1, a .port1, "MessageChannel.port1 is port1" );
var port2 = a .port2;
ok(port2, "MessageChannel.port1 exists" );
is(port2, a .port2, "MessageChannel.port2 is port2" );
[ 'postMessage' , 'start' , 'close' ].forEach(function(e) {
ok(e in port1, "MessagePort1." + e + " exists" );
ok(e in port2, "MessagePort2." + e + " exists" );
});
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