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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - ASSERTION FAILURE: !stayWithin || child->tree().isDescendantOf(stayWithin) in FrameTree::traverseNext()"
href="https://bugs.webkit.org/show_bug.cgi?id=160434">160434</a>
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<th>Summary</th>
<td>ASSERTION FAILURE: !stayWithin || child->tree().isDescendantOf(stayWithin) in FrameTree::traverseNext()
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>WebKit Local Build
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<th>Hardware</th>
<td>iOS
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<th>OS</th>
<td>iOS 9.3
</td>
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>Media Elements
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>dbates@webkit.org
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<th>CC</th>
<td>eric.carlson@apple.com, jeremyj-wk@apple.com
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<pre>Using a debug build of WebKit perform the following:
1. Open Simulator.app and simulate an iPad device (say, iPad Air 2).
2. Visit data:text/html,<iframe height='500' width='500' srcdoc='<video src="<a href="http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4">http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4</a>" controls>'></iframe>
3. Press the reload button.
Then the WebContent process crashes because the ASSERT(!stayWithin || child->tree().isDescendantOf(stayWithin)) fails in FrameTree::traverseNext().</pre>
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