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<base href="https://bugs.webkit.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - ASSERTION FAILED: !isClosed()"
href="https://bugs.webkit.org/show_bug.cgi?id=162307">162307</a>
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<tr>
<th>Summary</th>
<td>ASSERTION FAILED: !isClosed()
</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>New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>ryanhaddad@apple.com
</td>
</tr></table>
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<pre>Crash is attributed to LayoutTest fast/history/page-cache-notification-non-suspendable.html, but the crashlog points to fast/history/page-cache-media-source-opened.html
<a href="https://build.webkit.org/results/Apple%20El%20Capitan%20Debug%20WK2%20(Tests)/r206148%20(8282)/results.html">https://build.webkit.org/results/Apple%20El%20Capitan%20Debug%20WK2%20(Tests)/r206148%20(8282)/results.html</a>
ASSERTION FAILED: !isClosed()
/Volumes/Data/slave/elcapitan-debug/build/Source/WebCore/Modules/mediasource/MediaSource.cpp(894) : void WebCore::MediaSource::detachFromElement(WebCore::HTMLMediaElement &)
1 0x10a3e0330 WTFCrash
2 0x10e2ed635 WebCore::MediaSource::detachFromElement(WebCore::HTMLMediaElement&)
3 0x10d4dc3d5 WebCore::HTMLMediaElement::detachMediaSource()
4 0x10e2eda0a WebCore::MediaSource::stop()
5 0x10e2eda4c non-virtual thunk to WebCore::MediaSource::stop()
6 0x10e9b95e2 WebCore::ScriptExecutionContext::stopActiveDOMObjects()
7 0x10cf4c425 WebCore::Document::stopActiveDOMObjects()
8 0x10cf4129e WebCore::Document::prepareForDestruction()
9 0x10d2bedd0 WebCore::Frame::setView(WTF::RefPtr<WebCore::FrameView>&&)
10 0x10d2c1088 WebCore::Frame::createView(WebCore::IntSize const&, WebCore::Color const&, bool, WebCore::IntSize const&, WebCore::IntRect const&, bool, WebCore::ScrollbarMode, bool, WebCore::ScrollbarMode, bool)
11 0x106138802 WebKit::WebFrameLoaderClient::transitionToCommittedForNewPage()
12 0x10d2d3a91 WebCore::FrameLoader::transitionToCommitted(WebCore::CachedPage*)
13 0x10d2d2ab2 WebCore::FrameLoader::commitProvisionalLoad()
14 0x10cfca8bc WebCore::DocumentLoader::commitIfReady()
15 0x10cfcabdd WebCore::DocumentLoader::finishedLoading(double)
16 0x10cfd088d WebCore::DocumentLoader::maybeLoadEmpty()
17 0x10cfd0a1f WebCore::DocumentLoader::startLoadingMainResource()
18 0x10d2d5359 WebCore::FrameLoader::continueLoadAfterWillSubmitForm()
19 0x10d2d0ee2 WebCore::FrameLoader::continueLoadAfterNavigationPolicy(WebCore::ResourceRequest const&, WTF::PassRefPtr<WebCore::FormState>, bool, WebCore::AllowNavigationToInvalidURL)
20 0x10d2df4fe WebCore::FrameLoader::loadWithDocumentLoader(WebCore::DocumentLoader*, WebCore::FrameLoadType, WTF::PassRefPtr<WebCore::FormState>, WebCore::AllowNavigationToInvalidURL)::$_4::operator()(WebCore::ResourceRequest const&, WTF::PassRefPtr<WebCore::FormState>, bool) const
21 0x10d2df480 void std::__1::__invoke_void_return_wrapper<void>::__call<WebCore::FrameLoader::loadWithDocumentLoader(WebCore::DocumentLoader*, WebCore::FrameLoadType, WTF::PassRefPtr<WebCore::FormState>, WebCore::AllowNavigationToInvalidURL)::$_4&, WebCore::ResourceRequest const&, WTF::PassRefPtr<WebCore::FormState>, bool>(WebCore::FrameLoader::loadWithDocumentLoader(WebCore::DocumentLoader*, WebCore::FrameLoadType, WTF::PassRefPtr<WebCore::FormState>, WebCore::AllowNavigationToInvalidURL)::$_4&&&, WebCore::ResourceRequest const&&&, WTF::PassRefPtr<WebCore::FormState>&&, bool&&)
22 0x10d2df37c std::__1::__function::__func<WebCore::FrameLoader::loadWithDocumentLoader(WebCore::DocumentLoader*, WebCore::FrameLoadType, WTF::PassRefPtr<WebCore::FormState>, WebCore::AllowNavigationToInvalidURL)::$_4, std::__1::allocator<WebCore::FrameLoader::loadWithDocumentLoader(WebCore::DocumentLoader*, WebCore::FrameLoadType, WTF::PassRefPtr<WebCore::FormState>, WebCore::AllowNavigationToInvalidURL)::$_4>, void (WebCore::ResourceRequest const&, WTF::PassRefPtr<WebCore::FormState>, bool)>::operator()(WebCore::ResourceRequest const&, WTF::PassRefPtr<WebCore::FormState>&&, bool&&)
23 0x10e4f0357 std::__1::function<void (WebCore::ResourceRequest const&, WTF::PassRefPtr<WebCore::FormState>, bool)>::operator()(WebCore::ResourceRequest const&, WTF::PassRefPtr<WebCore::FormState>, bool) const
24 0x10e4ef8d9 WebCore::PolicyCallback::call(bool)
25 0x10e4f11ec WebCore::PolicyChecker::continueAfterNavigationPolicy(WebCore::PolicyAction)
26 0x10e4f47de WebCore::PolicyChecker::checkNavigationPolicy(WebCore::ResourceRequest const&, bool, WebCore::DocumentLoader*, WTF::PassRefPtr<WebCore::FormState>, std::__1::function<void (WebCore::ResourceRequest const&, WTF::PassRefPtr<WebCore::FormState>, bool)>)::$_1::operator()(WebCore::PolicyAction) const
27 0x10e4f47af void std::__1::__invoke_void_return_wrapper<void>::__call<WebCore::PolicyChecker::checkNavigationPolicy(WebCore::ResourceRequest const&, bool, WebCore::DocumentLoader*, WTF::PassRefPtr<WebCore::FormState>, std::__1::function<void (WebCore::ResourceRequest const&, WTF::PassRefPtr<WebCore::FormState>, bool)>)::$_1&, WebCore::PolicyAction>(WebCore::PolicyChecker::checkNavigationPolicy(WebCore::ResourceRequest const&, bool, WebCore::DocumentLoader*, WTF::PassRefPtr<WebCore::FormState>, std::__1::function<void (WebCore::ResourceRequest const&, WTF::PassRefPtr<WebCore::FormState>, bool)>)::$_1&&&, WebCore::PolicyAction&&)
28 0x10e4f472c std::__1::__function::__func<WebCore::PolicyChecker::checkNavigationPolicy(WebCore::ResourceRequest const&, bool, WebCore::DocumentLoader*, WTF::PassRefPtr<WebCore::FormState>, std::__1::function<void (WebCore::ResourceRequest const&, WTF::PassRefPtr<WebCore::FormState>, bool)>)::$_1, std::__1::allocator<WebCore::PolicyChecker::checkNavigationPolicy(WebCore::ResourceRequest const&, bool, WebCore::DocumentLoader*, WTF::PassRefPtr<WebCore::FormState>, std::__1::function<void (WebCore::ResourceRequest const&, WTF::PassRefPtr<WebCore::FormState>, bool)>)::$_1>, void (WebCore::PolicyAction)>::operator()(WebCore::PolicyAction&&)
29 0x10612e82c std::__1::function<void (WebCore::PolicyAction)>::operator()(WebCore::PolicyAction) const
30 0x106135856 WebKit::WebFrameLoaderClient::dispatchDecidePolicyForNavigationAction(WebCore::NavigationAction const&, WebCore::ResourceRequest const&, WTF::PassRefPtr<WebCore::FormState>, std::__1::function<void (WebCore::PolicyAction)>)
31 0x10e4f0dac WebCore::PolicyChecker::checkNavigationPolicy(WebCore::ResourceRequest const&, bool, WebCore::DocumentLoader*, WTF::PassRefPtr<WebCore::FormState>, std::__1::function<void (WebCore::ResourceRequest const&, WTF::PassRefPtr<WebCore::FormState>, bool)>)</pre>
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