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  1. Qt
  2. QTBUG-69281

[REG 5.10.1->5.11.1] QWebEngine asserts with proxy (.pac file)

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P1: Critical
    • Resolution: Done
    • Affects Version/s: 5.11.1
    • Fix Version/s: 5.11.3, 5.12.0 Beta 4
    • Component/s: WebEngine
    • Environment:
      Windows 7 Professional SP1 64bits (behind a proxy)
      Qt 5.11.0 with msvc2017 64-bit prebuilt components
    • Platform/s:
      Linux/X11, Windows
    • Commits:
      5be48d4238465b4efd36ed4bbb96ec407be9f217 (qt/qtwebengine/5.11)

      Description

      Hello,

      I'm developing a webEngineView with QWebEngine. But when it opens, I have the following message in the console:

      And I try the sample QML application. I have the same message in the console, and the app crashes.

      import QtQuick 2.0
      import QtQuick.Window 2.0
      import QtWebEngine 1.0
      
      Window {
          width: 1024
          height: 750
          visible: true
          WebEngineView {
              anchors.fill: parent
              url: "http://www.qt.io"
          }
      }
      

      Does this mean that QWebEngineWidget can't be used in windows 7 ?

      Thanks

      [5708:12124:0704/155020.142:INFO:media_foundation_video_encode_accelerator_win.cc(370)] Windows versions earlier than 8 are not supported.
      [5708:12124:0704/155020.142:INFO:media_foundation_video_encode_accelerator_win.cc(370)] Windows versions earlier than 8 are not supported.
      [5708:9344:0704/155021.626:WARNING:backend_impl.cc(1832)] Destroying invalid entry.
      [5708:9344:0704/155021.626:WARNING:backend_impl.cc(1832)] Destroying invalid entry.
      [5708:4100:0704/155021.723:FATAL:simple_watcher.cc(137)] Check failed: task_runner_->RunsTasksInCurrentSequence(). 
      Backtrace:
      	GetHandleVerifier [0x0000000182B7FDD5+502229]
      	GetHandleVerifier [0x0000000182B943C8+585672]
      	QWebEngineUrlSchemeHandler::_q_destroyedUrlSchemeHandler [0x0000000182A868E0+3264]
      	QtWebEngineCore::WebEngineSettings::setUnknownUrlSchemePolicy [0x0000000183C010C0+990160]
      	QtWebEngineCore::WebEngineSettings::setUnknownUrlSchemePolicy [0x0000000183BDEFE2+850674]
      	QtWebEngineCore::WebEngineSettings::setUnknownUrlSchemePolicy [0x0000000183BDCC12+841506]
      	QtWebEngineCore::WebEngineSettings::setUnknownUrlSchemePolicy [0x0000000183BCFFAA+789178]
      	QtWebEngineCore::WebEngineSettings::setUnknownUrlSchemePolicy [0x0000000183BC7B84+755348]
      	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x00000001801D2E8C+70284]
      	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x00000001801D3563+72035]
      	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x00000001801D3546+72006]
      	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x00000001801D2993+69011]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::~RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits [0x0000000181BBF8B3+3267379]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::~RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits [0x0000000181BC10B8+3273528]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018340611F+4314703]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001834065E0+4315920]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018340785D+4320653]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::~RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits [0x0000000181BCCABB+3321147]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::AddRef [0x0000000181253403+2992563]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x0000000183402AF5+4300837]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001834098E1+4328977]
      	QtWebEngineCore::FaviconInfo::~FaviconInfo [0x0000000180151503+2691]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018358DC56+5919110]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018358F714+5925956]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::~RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits [0x0000000181BCCABB+3321147]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::AddRef [0x0000000181253403+2992563]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x0000000183402AF5+4300837]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001834098E1+4328977]
      	QtWebEngineCore::FaviconInfo::~FaviconInfo [0x0000000180151503+2691]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001835418E5+5606933]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x0000000183540C50+5603712]
      	QtWebEngineCore::BrowserContextAdapter::customUrlSchemeHandlers [0x00000001817F5E27+1938455]
      	QtWebEngineCore::RenderWidgetHostViewQtDelegateClient::operator= [0x00000001842488A9+87145]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::AddRef [0x000000018151D
      [5708:4100:0704/155021.723:FATAL:simple_watcher.cc(137)] Check failed: task_runner_->RunsTasksInCurrentSequence(). 
      Backtrace:
      	GetHandleVerifier [0x0000000182B7FDD5+502229]
      	GetHandleVerifier [0x0000000182B943C8+585672]
      	QWebEngineUrlSchemeHandler::_q_destroyedUrlSchemeHandler [0x0000000182A868E0+3264]
      	QtWebEngineCore::WebEngineSettings::setUnknownUrlSchemePolicy [0x0000000183C010C0+990160]
      	QtWebEngineCore::WebEngineSettings::setUnknownUrlSchemePolicy [0x0000000183BDEFE2+850674]
      	QtWebEngineCore::WebEngineSettings::setUnknownUrlSchemePolicy [0x0000000183BDCC12+841506]
      	QtWebEngineCore::WebEngineSettings::setUnknownUrlSchemePolicy [0x0000000183BCFFAA+789178]
      	QtWebEngineCore::WebEngineSettings::setUnknownUrlSchemePolicy [0x0000000183BC7B84+755348]
      	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x00000001801D2E8C+70284]
      	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x00000001801D3563+72035]
      	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x00000001801D3546+72006]
      	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x00000001801D2993+69011]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::~RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits [0x0000000181BBF8B3+3267379]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::~RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits [0x0000000181BC10B8+3273528]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018340611F+4314703]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001834065E0+4315920]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018340785D+4320653]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::~RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits [0x0000000181BCCABB+3321147]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::AddRef [0x0000000181253403+2992563]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x0000000183402AF5+4300837]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001834098E1+4328977]
      	QtWebEngineCore::FaviconInfo::~FaviconInfo [0x0000000180151503+2691]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018358DC56+5919110]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018358F714+5925956]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::~RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits [0x0000000181BCCABB+3321147]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::AddRef [0x0000000181253403+2992563]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x0000000183402AF5+4300837]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001834098E1+4328977]
      	QtWebEngineCore::FaviconInfo::~FaviconInfo [0x0000000180151503+2691]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001835418E5+5606933]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x0000000183540C50+5603712]
      	QtWebEngineCore::BrowserContextAdapter::customUrlSchemeHandlers [0x00000001817F5E27+1938455]
      	QtWebEngineCore::RenderWidgetHostViewQtDelegateClient::operator= [0x00000001842488A9+87145]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::AddRef [0x000000018151DFC5+5920117]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::AddRef [0x0000000181521AF1+5935265]
      	QtWebEngineCore::FaviconInfo::~FaviconInfo [0x0000000180151503+2691]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001836F2465+7379349]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001836F21A0+7378640]
      	QtWebEngineCore::BrowserContextAdapter::customUrlSchemeHandlers [0x00000001817F5E27+1938455]
      	QtWebEngineCore::RenderWidgetHostViewQtDelegateClient::operator= [0x00000001842488A9+87145]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::AddRef [0x000000018151DFC5+5920117]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::AddRef [0x0000000181521AF1+5935265]
      	QtWebEngineCore::FaviconInfo::~FaviconInfo [0x0000000180151503+2691]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001834012AB+4294619]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001834017CE+4295934]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x0000000183400625+4291413]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x0000000183401F27+4297815]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001834016C4+4295668]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018337AC28+3744088]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018342E57D+4479661]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018342B167+4466327]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018342B1F2+4466466]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018342B28F+4466623]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018342E1A1+4478673]
      	QtWebEngineCore::BrowserContextAdapter::customUrlSchemeHandlers [0x000000018166EACA+336058]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018342DCDB+4477451]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018367D499+6900169]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::~RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits [0x0000000181BCCABB+3321147]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::AddRef [0x0000000181253403+2992563]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x0000000183402AF5+4300837]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001834098E1+4328977]
      	QtWebEngineCore::BrowserContextAdapter::customUrlSchemeHandlers [0x000000018166EACA+336058]
      
      FC5+5920117]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::AddRef [0x0000000181521AF1+5935265]
      	QtWebEngineCore::FaviconInfo::~FaviconInfo [0x0000000180151503+2691]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001836F2465+7379349]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001836F21A0+7378640]
      	QtWebEngineCore::BrowserContextAdapter::customUrlSchemeHandlers [0x00000001817F5E27+1938455]
      	QtWebEngineCore::RenderWidgetHostViewQtDelegateClient::operator= [0x00000001842488A9+87145]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::AddRef [0x000000018151DFC5+5920117]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::AddRef [0x0000000181521AF1+5935265]
      	QtWebEngineCore::FaviconInfo::~FaviconInfo [0x0000000180151503+2691]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001834012AB+4294619]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001834017CE+4295934]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x0000000183400625+4291413]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x0000000183401F27+4297815]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001834016C4+4295668]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018337AC28+3744088]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018342E57D+4479661]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018342B167+4466327]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018342B1F2+4466466]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018342B28F+4466623]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018342E1A1+4478673]
      	QtWebEngineCore::BrowserContextAdapter::customUrlSchemeHandlers [0x000000018166EACA+336058]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018342DCDB+4477451]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x000000018367D499+6900169]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::~RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits [0x0000000181BCCABB+3321147]
      	base::RefCountedThreadSafe<QtWebEngineCore::CookieMonsterDelegateQt,base::DefaultRefCountedThreadSafeTraits<QtWebEngineCore::CookieMonsterDelegateQt> >::AddRef [0x0000000181253403+2992563]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x0000000183402AF5+4300837]
      	QtWebEngineCore::BrowserContextAdapter::isOffTheRecord [0x00000001834098E1+4328977]
      	QtWebEngineCore::BrowserContextAdapter::customUrlSchemeHandlers [0x000000018166EACA+336058]
      

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          Issue Links

          For Gerrit Dashboard: QTBUG-69281
          # Subject Branch Project Status CR V

            Activity

              People

              • Assignee:
                michal Michal Klocek
                Reporter:
                ren Ren Wang
              • Votes:
                3 Vote for this issue
                Watchers:
                13 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved:

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