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<base href="https://bugs.webkit.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Cannot attach Shadow root to unregistered custom element name"
href="https://bugs.webkit.org/show_bug.cgi?id=158550">158550</a>
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<th>Summary</th>
<td>Cannot attach Shadow root to unregistered custom element name
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>Product</th>
<td>WebKit
</td>
</tr>
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<th>Version</th>
<td>Safari Technology Preview
</td>
</tr>
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<th>Hardware</th>
<td>Unspecified
</td>
</tr>
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<th>OS</th>
<td>Unspecified
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
</tr>
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<th>Component</th>
<td>HTML DOM
</td>
</tr>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>ericbidelman@chromium.org
</td>
</tr>
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<th>CC</th>
<td>cdumez@apple.com
</td>
</tr></table>
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<pre>Repo:
1. Visit <a href="http://jsbin.com/kowodikoyo/edit?html,output">http://jsbin.com/kowodikoyo/edit?html,output</a> in Safari TP version 9.1.2 (11601.7.4, 11602.1.35), or Webkit Nightly Version 9.1.1 (11601.6.17, r201834)
2. Click the pink button.
Expected:
A ripple animation where you click.
Actual:
Running the same demo (<a href="http://jsbin.com/kowodikoyo/edit?html,output">http://jsbin.com/kowodikoyo/edit?html,output</a>) in Chrome Canary 52.0.2762.0 works as expected. The ripple animation plays.
It appears that attachShadowRoot is not working with a viable custom element name. Changing better-button -> div makes the demo work in Safari TP and WK Nightly.</pre>
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