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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=845057
+-->
+<head>
+ <title>Test for Bug 845057</title>
+ <script src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=845057">Mozilla Bug 845057</a>
+<p id="display"></p>
+<div id="content">
+ <iframe id="iframe" sandbox="allow-scripts"></iframe>
+
+</div>
+<pre id="test">
+<script class="testbody" type="text/javascript">
+ var iframe = document.getElementById("iframe"),
+ attr = iframe.sandbox;
+ // Security enforcement tests for iframe sandbox are in test_iframe_*
+
+ function eq(a, b) {
+ // check if two attributes are qual modulo permutation
+ return ((a+'').split(" ").sort()+'') == ((b+'').split(" ").sort()+'');
+ }
+
+ ok(attr instanceof DOMTokenList,
+ "Iframe sandbox attribute is instace of DOMTokenList");
+ ok(eq(attr, "allow-scripts") &&
+ eq(iframe.getAttribute("sandbox"), "allow-scripts"),
+ "Stringyfied sandbox attribute is same as that of the DOM element");
+
+ ok(attr.contains("allow-scripts") && !attr.contains("allow-same-origin"),
+ "Set membership of attribute elements is ok");
+
+ attr.add("allow-same-origin");
+
+ ok(attr.contains("allow-scripts") && attr.contains("allow-same-origin"),
+ "Attribute contains added atom");
+ ok(eq(attr, "allow-scripts allow-same-origin") &&
+ eq(iframe.getAttribute("sandbox"), "allow-scripts allow-same-origin"),
+ "Stringyfied attribute with new atom is correct");
+
+ attr.add("allow-forms");
+ attr.remove("allow-scripts");
+
+ ok(!attr.contains("allow-scripts") && attr.contains("allow-forms") &&
+ attr.contains("allow-same-origin"),
+ "Attribute does not contain removed atom");
+ ok(eq(attr, "allow-forms allow-same-origin") &&
+ eq(iframe.getAttribute("sandbox"), "allow-forms allow-same-origin"),
+ "Stringyfied attribute with removed atom is correct");
+</script>
+</pre>
+</body>
+</html>
+