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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 - ASSERTION FAILED: referrer == URL(URL(), referrer).strippedForUseAsReferrer() in WebCore::SecurityPolicy::generateReferrerHeader"
   href="https://bugs.webkit.org/show_bug.cgi?id=167050">167050</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>ASSERTION FAILED: referrer == URL(URL(), referrer).strippedForUseAsReferrer() in WebCore::SecurityPolicy::generateReferrerHeader
          </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>PC
          </td>
        </tr>

        <tr>
          <th>URL</th>
          <td>https://trac.webkit.org/browser
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </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>WebCore Misc.
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>mcatanzaro&#64;igalia.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>bugs-noreply&#64;webkitgtk.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>This assertion is reproducible on <a href="https://trac.webkit.org/browser">https://trac.webkit.org/browser</a>:

(1) Click on one of the four expander arrows, e.g. the one immediately to the left of &quot;trunk&quot; in order to expand the directory layout. Note that, while the contents of the page change, the page URL remains <a href="https://trac.webkit.org/browser">https://trac.webkit.org/browser</a>.
(2) Click on any link, e.g. the WebKit logo in the top left of the page. Wait for the page to load.
(3) Click Back. Note the page URL is now different, it has gained a fragment: <a href="https://trac.webkit.org/browser#trunk">https://trac.webkit.org/browser#trunk</a>
(4) Click on any link, e.g. the WebKit logo in the top-left again.

Now in WebCore::SecurityPolicy::generateReferrerHeader, we have:

 * referrer is &quot;<a href="https://trac.webkit.org/browser#trunk">https://trac.webkit.org/browser#trunk</a>&quot;
 * URL(URL(), referrer).strippedForUseAsReferrer() is &quot;<a href="https://trac.webkit.org/browser">https://trac.webkit.org/browser</a>&quot;

URL::strippedForUseAsReferrer intentionally removes the fragment, as required by RFC 2616. So referrer is somehow incorrect here. It triggers this assertion:

ASSERTION FAILED: referrer == URL(URL(), referrer).strippedForUseAsReferrer()
../../Source/WebCore/page/SecurityPolicy.cpp(73) : static WTF::String WebCore::SecurityPolicy::generateReferrerHeader(WebCore::ReferrerPolicy, const WebCore::URL&amp;, const WTF::String&amp;)
1   0x7f0f496b92d2 /home/mcatanzaro/Projects/GNOME/install/lib/libjavascriptcoregtk-4.0.so.18(WTFCrash+0x1e) [0x7f0f496b92d2]
2   0x7f0f52b0c877 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore14SecurityPolicy22generateReferrerHeaderENS_14ReferrerPolicyERKNS_3URLERKN3WTF6StringE+0x1dd) [0x7f0f52b0c877]
3   0x7f0f5294ad37 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore11FrameLoader16loadFrameRequestERKNS_16FrameLoadRequestEPNS_5EventEPNS_9FormStateE+0x265) [0x7f0f5294ad37]
4   0x7f0f52947553 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore11FrameLoader11urlSelectedERKNS_16FrameLoadRequestEPNS_5EventE+0x23b) [0x7f0f52947553]
5   0x7f0f529472c1 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore11FrameLoader11urlSelectedERKNS_3URLERKN3WTF6StringEPNS_5EventENS_11LockHistoryENS_19LockBackForwardListENS_18ShouldSendReferrerENS_28ShouldOpenExternalURLsPolicyESt8optionalINS_20NewFrameOpenerPolicyEERKNS4_12AtomicStringE+0x10d) [0x7f0f529472c1]
6   0x7f0f52698211 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore17HTMLAnchorElement11handleClickERNS_5EventE+0x387) [0x7f0f52698211]
7   0x7f0f52696f8c /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore17HTMLAnchorElement19defaultEventHandlerERNS_5EventE+0xe8) [0x7f0f52696f8c]
8   0x7f0f52492894 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(+0x5e28894) [0x7f0f52492894]
9   0x7f0f52492f78 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore15EventDispatcher13dispatchEventERNS_4NodeERNS_5EventE+0x3cf) [0x7f0f52492f78]
10  0x7f0f524e0bad /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore4Node13dispatchEventERNS_5EventE+0x53) [0x7f0f524e0bad]
11  0x7f0f5247311a /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore7Element18dispatchMouseEventERKNS_18PlatformMouseEventERKN3WTF12AtomicStringEiPS0_+0x19c) [0x7f0f5247311a]
12  0x7f0f52a877b5 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore12EventHandler18dispatchMouseEventERKN3WTF12AtomicStringEPNS_4NodeEbiRKNS_18PlatformMouseEventEb+0xfd) [0x7f0f52a877b5]
13  0x7f0f52a85409 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore12EventHandler23handleMouseReleaseEventERKNS_18PlatformMouseEventE+0x60d) [0x7f0f52a85409]
14  0x7f0f530f85dc /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN7WebCore15UserInputBridge23handleMouseReleaseEventERKNS_18PlatformMouseEventENS_11InputSourceE+0x3c) [0x7f0f530f85dc]
15  0x7f0f519ed152 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(+0x5383152) [0x7f0f519ed152]
16  0x7f0f519ed436 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN6WebKit7WebPage10mouseEventERKNS_13WebMouseEventE+0x1f4) [0x7f0f519ed436]
17  0x7f0f51d79df1 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC22callMemberFunctionImplIN6WebKit7WebPageEMS2_FvRKNS1_13WebMouseEventEESt5tupleIJS3_EEJLm0EEEEvPT_T0_OT1_St16integer_sequenceImJXspT2_EEE+0x80) [0x7f0f51d79df1]
18  0x7f0f51d7838a /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC18callMemberFunctionIN6WebKit7WebPageEMS2_FvRKNS1_13WebMouseEventEESt5tupleIJS3_EESt16integer_sequenceImJLm0EEEEEvOT1_PT_T0_+0x41) [0x7f0f51d7838a]
19  0x7f0f51d716ee /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC13handleMessageIN8Messages7WebPage10MouseEventEN6WebKit7WebPageEMS5_FvRKNS4_13WebMouseEventEEEEvRNS_7DecoderEPT0_T1_+0x9b) [0x7f0f51d716ee]
20  0x7f0f51d6c68d /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN6WebKit7WebPage24didReceiveWebPageMessageERN3IPC10ConnectionERNS1_7DecoderE+0x597) [0x7f0f51d6c68d]
21  0x7f0f519f37ca /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN6WebKit7WebPage17didReceiveMessageERN3IPC10ConnectionERNS1_7DecoderE+0x240) [0x7f0f519f37ca]
22  0x7f0f515e55b5 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC18MessageReceiverMap15dispatchMessageERNS_10ConnectionERNS_7DecoderE+0x125) [0x7f0f515e55b5]
23  0x7f0f51872f8a /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN6WebKit10WebProcess17didReceiveMessageERN3IPC10ConnectionERNS1_7DecoderE+0x4c) [0x7f0f51872f8a]
24  0x7f0f515cae6a /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC10Connection15dispatchMessageERNS_7DecoderE+0x3a) [0x7f0f515cae6a]
25  0x7f0f515cafd4 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC10Connection15dispatchMessageESt10unique_ptrINS_7DecoderESt14default_deleteIS2_EE+0x166) [0x7f0f515cafd4]
26  0x7f0f515cb1c6 /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZN3IPC10Connection18dispatchOneMessageEv+0xc8) [0x7f0f515cb1c6]
27  0x7f0f515cad0a /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(+0x4f60d0a) [0x7f0f515cad0a]
28  0x7f0f515d10aa /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(+0x4f670aa) [0x7f0f515d10aa]
29  0x7f0f5159456d /home/mcatanzaro/Projects/GNOME/install/lib/libwebkit2gtk-4.0.so.37(_ZNK3WTF8FunctionIFvvEEclEv+0x37) [0x7f0f5159456d]
30  0x7f0f496d8a68 /home/mcatanzaro/Projects/GNOME/install/lib/libjavascriptcoregtk-4.0.so.18(_ZN3WTF7RunLoop11performWorkEv+0xce) [0x7f0f496d8a68]
31  0x7f0f4971f8e8 /home/mcatanzaro/Projects/GNOME/install/lib/libjavascriptcoregtk-4.0.so.18(+0x25008e8) [0x7f0f4971f8e8]</pre>
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