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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - PromiseSubclass.resolve does not "cast" correctly"
href="https://bugs.webkit.org/show_bug.cgi?id=149477">149477</a>
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<th>Summary</th>
<td>PromiseSubclass.resolve does not "cast" correctly
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
</tr>
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<th>Version</th>
<td>WebKit Nightly Build
</td>
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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>Major
</td>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>JavaScriptCore
</td>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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</tr>
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<th>Reporter</th>
<td>stefan.penner@gmail.com
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<p>
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<pre><a href="http://www.ecma-international.org/ecma-262/6.0/#sec-promise.resolve">http://www.ecma-international.org/ecma-262/6.0/#sec-promise.resolve</a>
the following lines of the spec text:
25.4.4.5.a
25.4.4.5.c
Indicate
class PromiseSubclass extends Promise { }
PromiseSubclass.resolve(Promise.resolve()).constructor === PromiseSubclass;
Unfortunately, today the following is true:
PromiseSubclass.resolve(Promise.resolve()).constructor === Promise;
Related patch to V8 -> <a href="https://codereview.chromium.org/1362773002">https://codereview.chromium.org/1362773002</a></pre>
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