dom/tests/mochitest/whatwg/postMessage_override_helper.html

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0 1 <!DOCTYPE html>
michael@0 2 <html>
michael@0 3 <head>
michael@0 4 <title>Overriding postMessage and dispatchEvent bindings</title>
michael@0 5 <script type="application/javascript">
michael@0 6 window.postMessage = function (evt)
michael@0 7 {
michael@0 8 window.parent.postMessage("FAIL overridden postMessage called", "*");
michael@0 9 };
michael@0 10
michael@0 11 var count = 0;
michael@0 12
michael@0 13 function receiveMessage(evt)
michael@0 14 {
michael@0 15 count++;
michael@0 16 if (count == 1)
michael@0 17 {
michael@0 18 window.dispatchEvent = function(evt)
michael@0 19 {
michael@0 20 window.parent.postMessage("FAIL", "*");
michael@0 21 throw "dispatchEvent threw";
michael@0 22 };
michael@0 23 }
michael@0 24
michael@0 25 window.parent.postMessage(evt.data, "http://mochi.test:8888");
michael@0 26 }
michael@0 27
michael@0 28 function setup()
michael@0 29 {
michael@0 30 var target = document.getElementById("location");
michael@0 31 target.textContent = location.hostname + ":" + (location.port || 80);
michael@0 32 }
michael@0 33
michael@0 34 window.addEventListener("message", receiveMessage, false);
michael@0 35
michael@0 36 window.addEventListener("load", setup, false);
michael@0 37 </script>
michael@0 38 </head>
michael@0 39 <body>
michael@0 40 <h1 id="location">No location!</h1>
michael@0 41 </body>
michael@0 42 </html>

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