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<!DOCTYPE html>
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<head>
<title>HTML5 Sandbox: Nested iframes cannot have less sandbox restrictions than their most restrictive ancestor iframe.</title>
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" />
<meta name="assert" content="Nested iframes cannot have less sandbox restrictions than their most restrictive ancestor iframe." />
<script src="support/sandbox_helper.js" type="text/javascript"></script>
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<pre>Description: Nested iframes cannot have less sandbox restrictions than their most restrictive ancestor iframe.</pre>
<div>This test is to verify script is allowed inside nested iframes if any of the conditions below are true</div>
<div>1. both parent sandbox and child sandbox have 'allow-scripts' token.</div>
<div>2. parent sandbox has 'allow-scripts' token and nested child iframe has no sandbox attribute.</div>
<div>3. parent iframe has no sandbox attribute and child iframe has sandbox='allow-scripts' token.</div>
<div>4. both parent and child iframes have no sandbox attribute.</div>
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<table id='testtable' border='1'>
<tr>
<td>Test Result</td>
<td>Test Assertion</td>
</tr>
<tr>
<td id='test_0_result'>Manual</td>
<td id='test_0_assertion'>Test passes if there is no red on the page.</td>
</tr>
</table>
<br />
<div id="testframe">
<div style="float: left; border: 1px solid; padding: 5px;">
<div style="font-weight: bold">Top-most iframe with sandbox="allow-scripts"</div>
<iframe id="iframe1" src="support/iframe_sandbox_021.htm" sandbox="allow-scripts" style="height: 330px; width: 400px;"></iframe>
</div>
<div style="float: left; border: 1px solid; padding: 5px; margin-left: 20px;">
<div style="font-weight: bold">Top-most iframe without sandbox attribute</div>
<iframe id="iframe2" src="support/iframe_sandbox_021.htm" style="height: 330px; width: 400px;"></iframe>
</div>
</div>
<script type="text/javascript">
DisableTestForNonSupportingBrowsers();
</script>
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</html>