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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - WKWebView provides misleading info about applicationCache support"
href="https://bugs.webkit.org/show_bug.cgi?id=152490">152490</a>
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<th>Summary</th>
<td>WKWebView provides misleading info about applicationCache support
</td>
</tr>
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<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>Other
</td>
</tr>
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<th>Hardware</th>
<td>iOS
</td>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>Normal
</td>
</tr>
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<th>Priority</th>
<td>P2
</td>
</tr>
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<th>Component</th>
<td>WebKit2
</td>
</tr>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>eugenebut@chromium.org
</td>
</tr></table>
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<pre>Created <span class=""><a href="attachment.cgi?id=267760" name="attach_267760" title="Test App">attachment 267760</a> <a href="attachment.cgi?id=267760&action=edit" title="Test App">[details]</a></span>
Test App
Application cache is not supported by WKWebView, but window.applicationCache object exists, so web pages can not distinguish if applicationCache is not supported or it is not loaded yet.
Some web applications may rely on window.applicationCache presence to check if Application Cache is supported. That can lead to performance issues with WKWebView-based browsers. This bug does not affect Safari, which supports Application Cache.</pre>
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