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      <base href="https://bugs.webkit.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Crash in Page::diagnosticLoggingClient() under ResourceLoader::didReceiveResponse()"
   href="https://bugs.webkit.org/show_bug.cgi?id=158920">158920</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Crash in Page::diagnosticLoggingClient() under ResourceLoader::didReceiveResponse()
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Nightly Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Page Loading
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>ap&#64;webkit.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>achristensen&#64;apple.com, beidson&#64;apple.com, cdumez&#64;apple.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=281628" name="attach_281628" title="crash log">attachment 281628</a> <a href="attachment.cgi?id=281628&amp;action=edit" title="crash log">[details]</a></span>
crash log

Saw this crash on a bot. It's crazy, we shouldn't be receiving resource loading messages when there is no page!

We had some substantial changes in loading code over the last couple of weeks, so could be a recent regression.

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.WebCore                 0x000000010dbdd5e3 WebCore::Page::diagnosticLoggingClient() const + 35 (Page.cpp:767)
1   com.apple.WebCore                 0x000000010de1ed6d WebCore::ResourceLoader::didReceiveResponse(WebCore::ResourceResponse const&amp;) + 429 (ResourceLoader.cpp:430)
2   com.apple.WebCore                 0x000000010dfae3a4 WebCore::SubresourceLoader::didReceiveResponse(WebCore::ResourceResponse const&amp;) + 772 (SubresourceLoader.cpp:277)
3   com.apple.WebKit                  0x000000010b3af9d5 WebKit::WebResourceLoader::didReceiveResponse(WebCore::ResourceResponse const&amp;, bool) + 65 (WebResourceLoader.cpp:126)
4   com.apple.WebKit                  0x000000010b3b04fb void IPC::handleMessage&lt;Messages::WebResourceLoader::DidReceiveResponse, WebKit::WebResourceLoader, void (WebKit::WebResourceLoader::*)(WebCore::ResourceResponse const&amp;, bool)&gt;(IPC::MessageDecoder&amp;, WebKit::WebResourceLoader*, void (WebKit::WebResourceLoader::*)(WebCore::ResourceResponse const&amp;, bool)) + 133 (HandleMessage.h:93)
5   com.apple.WebKit                  0x000000010b1a65cf IPC::Connection::dispatchMessage(std::__1::unique_ptr&lt;IPC::MessageDecoder, std::__1::default_delete&lt;IPC::MessageDecoder&gt; &gt;) + 119 (Connection.cpp:920)</pre>
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