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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Implement Cache-control: immutable"
href="https://bugs.webkit.org/show_bug.cgi?id=167497">167497</a>
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<th>Summary</th>
<td>Implement Cache-control: immutable
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<th>Classification</th>
<td>Unclassified
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<th>Product</th>
<td>WebKit
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<th>Version</th>
<td>WebKit Nightly Build
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<th>Hardware</th>
<td>Unspecified
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<th>OS</th>
<td>Unspecified
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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>Page Loading
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>koivisto@iki.fi
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<th>CC</th>
<td>beidson@apple.com
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<pre>Cache-control value 'immutable' indicates that a subresource does not change and so does not need to be revalidated on a normal reload. This can significantly speed up reloads and reduce network traffic.
It is has been implemented in Firefox and is already used by Facebook.
<a href="https://tools.ietf.org/html/draft-mcmanus-immutable-00">https://tools.ietf.org/html/draft-mcmanus-immutable-00</a>
<a href="https://hacks.mozilla.org/2017/01/using-immutable-caching-to-speed-up-the-web/">https://hacks.mozilla.org/2017/01/using-immutable-caching-to-speed-up-the-web/</a></pre>
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