45 lines
1.8 KiB
HTML
45 lines
1.8 KiB
HTML
<?xml version="1.0"?>
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<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
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<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=804630
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-->
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<window title="Mozilla Bug 804630"
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xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
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<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
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<!-- test results are displayed in the html:body -->
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<body xmlns="http://www.w3.org/1999/xhtml">
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<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=804630"
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target="_blank">Mozilla Bug 804630</a>
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</body>
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<!-- test code goes here -->
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<script type="application/javascript">
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<![CDATA[
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/** Test to make sure that COWed objects can't expose properties from their prototypes. **/
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// Set up the sandbox.
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var sb = new Cu.Sandbox("https://www.example.com");
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sb.ok = ok;
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sb.is = is;
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// Make a chrome object that tries to expose objects off its prototype.
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sb.proto = { read: 42, readWrite: 32 };
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sb.obj = {};
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sb.obj.__proto__ = sb.proto;
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// Make sure we can't access any of the properties on the prototype directly.
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Cu.evalInSandbox('is(proto.read, undefined, "proto.read inaccessible");', sb);
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Cu.evalInSandbox('var wrote = false; ' +
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'try { proto.readWrite = 12; wrote = true; } catch(e) {} ' +
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' ok(!wrote, "Should not write proto property");', sb);
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// Make sure we can't access the exposed properties via the derived object.
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Cu.evalInSandbox('is(obj.read, undefined, "obj.read inaccessible");', sb);
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Cu.evalInSandbox('is(obj.readWrite, undefined, "obj.readWrite is not readable");', sb);
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Cu.evalInSandbox('try { obj.readWrite = 8; ok(false, "obj.readWrite is not writable"); } catch (e) {};',
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sb);
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]]>
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</script>
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</window>
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