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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - CSP: Fire 'load' events even when blocking loads via 'frame-src'."
href="https://bugs.webkit.org/show_bug.cgi?id=153150">153150</a>
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<th>Summary</th>
<td>CSP: Fire 'load' events even when blocking loads via 'frame-src'.
</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>WebKit Local Build
</td>
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<th>Hardware</th>
<td>All
</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>Keywords</th>
<td>BlinkMergeCandidate
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>WebCore Misc.
</td>
</tr>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
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<th>Reporter</th>
<td>dbates@webkit.org
</td>
</tr>
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<th>CC</th>
<td>dbates@webkit.org
</td>
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<p>
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<pre>We should merge <<a href="https://src.chromium.org/viewvc/blink?view=rev&revision=165743">https://src.chromium.org/viewvc/blink?view=rev&revision=165743</a>>.
CSP: Fire 'load' events even when blocking loads via 'frame-src'.
If we fire a 'load' event, the frame looks just like any other
cross-origin load that succeeded. If we don't fire a 'load' event,
timing attacks can gain knowledge about the URL in the frame by blocking
the URL in a page's CSP, and waiting long enough to be sure that a 'load'
event _would_ have fired if the load wasn't blocked.</pre>
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</p>
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