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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [INTL] some valid language tags cause errors in Intl constructors"
href="https://bugs.webkit.org/show_bug.cgi?id=161672">161672</a>
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<th>Summary</th>
<td>[INTL] some valid language tags cause errors in Intl constructors
</td>
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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>Safari Technology Preview
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<th>Hardware</th>
<td>Unspecified
</td>
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<th>OS</th>
<td>Unspecified
</td>
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<th>Status</th>
<td>NEW
</td>
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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>JavaScriptCore
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>thetalecrafter@gmail.com
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<p>
<div>
<pre>The tests for language tag handling in the kangax compat tables[1][2] fail in JSC on some valid language tags:
cmn-hans-cn-t-ca-u-ca-x-t-u
aa-a-foo-x-a-foo-bar
x-en-u-foo
x-en-u-foo-u-bar
Implementations in Firefox, Chrome, and Edge pass these tests.
[1] <a href="http://kangax.github.io/compat-table/esintl/">http://kangax.github.io/compat-table/esintl/</a>
[2] <a href="https://github.com/tc39/test262/blob/83b07ff15eadb141c3d6f4d236a8733b720041d2/test/intl402/6.2.2_a.js">https://github.com/tc39/test262/blob/83b07ff15eadb141c3d6f4d236a8733b720041d2/test/intl402/6.2.2_a.js</a></pre>
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</p>
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