109288 2013-02-08 05:21:13 -0800 [Qt] After the web process crashes and is restarted, WebView.experimental.onMessageReceived is not invoked anymore 2022-02-28 03:57:26 -0800 1 1 1 Unclassified WebKit WebKit Qt 528+ (Nightly build) Unspecified Linux RESOLVED INVALID P3 Normal --- 1 olivier webkit-unassigned abecsi cmarcelo commit-queue jturcotte lamarque menard oldest_to_newest 828461 0 187295 olivier 2013-02-08 05:21:13 -0800 Created attachment 187295 minimal standalone example to reproduce the bug This issue is observed with the QML WebView component from QtWebkit 5.0.0 in Ubuntu 12.10. libqt5webkit5-qmlwebkitplugin version 5.0.0-0ubuntu1~quantal1~test5~withdebug~gstabs~patches installed from https://launchpad.net/~canonical-qt5-edgers/+archive/qt5-proper. According to the source package, the corresponding version of webkit is revision 136242 from trunk. I’m injecting some javascript into the document using experimental.evaluateJavaScript(…), the code injected calls navigator.qt.postMessage(…) to send messages back to the QML side, and on the QML side I’m getting the messages in the experimental.onMessageReceived(…) slot. This works nicely, until the web process crashes. If I refresh the page, the web process is restarted, and the code is injected, but I’m not getting the messages on the QML side anymore: experimental.onMessageReceived(…) is never invoked again. I’ve written a minimal standalone example which I’m attaching here. Steps to reproduce the issue: 1) open the QML script from a terminal with qmlscene 2) observe that when the page is loaded, the message "MESSAGE: hello QML" is printed out to the console 3) click on the refresh button, and observe that the page is reloaded, and the same message is printed out again to the console 4) in another terminal window, issue `killall QtWebProcess` 5) click on the refresh button, observe that the page is reloaded, but the message is not printed out to the console Please let me know if I can provide more useful/detailed information to help fix the issue. 898364 1 204083 lamarque 2013-06-07 20:53:54 -0700 Created attachment 204083 Patch Proposed patch 935689 2 204083 andersca 2013-10-02 21:33:13 -0700 Comment on attachment 204083 Patch Qt has been removed, clearing review flags. 975673 3 jturcotte 2014-02-03 03:24:59 -0800 === Bulk closing of Qt bugs === If you believe that this bug report is still relevant for a non-Qt port of webkit.org, please re-open it and remove [Qt] from the summary. If you believe that this is still an important QtWebKit bug, please fill a new report at https://bugreports.qt-project.org and add a link to this issue. See http://qt-project.org/wiki/ReportingBugsInQt for additional guidelines. 187295 2013-02-08 05:21:13 -0800 2013-02-08 05:21:13 -0800 minimal standalone example to reproduce the bug test.qml text/x-qml 1222 olivier aW1wb3J0IFF0UXVpY2sgMi4wCmltcG9ydCBRdFdlYktpdCAzLjAKaW1wb3J0IFF0V2ViS2l0LmV4 cGVyaW1lbnRhbCAxLjAKCkl0ZW0gewogICAgd2lkdGg6IDQwMAogICAgaGVpZ2h0OiA0NTAKICAg IAogICAgV2ViVmlldyB7CiAgICAgICAgaWQ6IHdlYnZpZXcKCiAgICAgICAgYW5jaG9ycyB7CiAg ICAgICAgICAgIHRvcDogcGFyZW50LnRvcAogICAgICAgICAgICBib3R0b206IGJ1dHRvbi50b3AK ICAgICAgICAgICAgbGVmdDogcGFyZW50LmxlZnQKICAgICAgICAgICAgcmlnaHQ6IHBhcmVudC5y aWdodAogICAgICAgIH0KCiAgICAgICAgdXJsOiAiaHR0cDovL2V4YW1wbGUub3JnIgoKICAgICAg ICBleHBlcmltZW50YWwucHJlZmVyZW5jZXMubmF2aWdhdG9yUXRPYmplY3RFbmFibGVkOiB0cnVl CiAgICAgICAgZXhwZXJpbWVudGFsLm9uTWVzc2FnZVJlY2VpdmVkOiBjb25zb2xlLmxvZygiTUVT U0FHRToiLCBtZXNzYWdlLmRhdGEpCgogICAgICAgIG9uTG9hZGluZ0NoYW5nZWQ6IHsKICAgICAg ICAgICAgaWYgKGxvYWRSZXF1ZXN0LnN0YXR1cyA9PT0gV2ViVmlldy5Mb2FkU3VjY2VlZGVkU3Rh dHVzKSB7CiAgICAgICAgICAgICAgICB2YXIgcXVlcnkgPSBmdW5jdGlvbigpIHsKICAgICAgICAg ICAgICAgICAgICBuYXZpZ2F0b3IucXQucG9zdE1lc3NhZ2UoImhlbGxvIFFNTCIpOwogICAgICAg ICAgICAgICAgfQogICAgICAgICAgICAgICAgZXhwZXJpbWVudGFsLmV2YWx1YXRlSmF2YVNjcmlw dCgiKCIgKyBxdWVyeS50b1N0cmluZygpICsgIikoKSIpCiAgICAgICAgICAgIH0KICAgICAgICB9 CiAgICB9CgogICAgTW91c2VBcmVhIHsKICAgICAgICBpZDogYnV0dG9uCgogICAgICAgIGFuY2hv cnMgewogICAgICAgICAgICBsZWZ0OiBwYXJlbnQubGVmdAogICAgICAgICAgICByaWdodDogcGFy ZW50LnJpZ2h0CiAgICAgICAgICAgIGJvdHRvbTogcGFyZW50LmJvdHRvbQogICAgICAgIH0KICAg ICAgICBoZWlnaHQ6IDUwCgogICAgICAgIFJlY3RhbmdsZSB7CiAgICAgICAgICAgIGFuY2hvcnMu ZmlsbDogcGFyZW50CiAgICAgICAgICAgIGNvbG9yOiAibGlnaHRzdGVlbGJsdWUiCiAgICAgICAg fQoKICAgICAgICBUZXh0IHsKICAgICAgICAgICAgYW5jaG9ycy5jZW50ZXJJbjogcGFyZW50CiAg ICAgICAgICAgIHRleHQ6ICJSZWZyZXNoIgogICAgICAgIH0KCiAgICAgICAgb25DbGlja2VkOiB3 ZWJ2aWV3LnJlbG9hZCgpCiAgICB9Cn0KCg== 204083 2013-06-07 20:53:54 -0700 2022-02-28 03:57:26 -0800 Patch bug-109288-20130608005219.patch text/plain 1779 lamarque U3VidmVyc2lvbiBSZXZpc2lvbjogMTUxMjkyCmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViS2l0Mi9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViS2l0Mi9DaGFuZ2VMb2cKaW5kZXggMmMwNGY0NmJkMjIzODNh NjcyNGM1ODk4OTczMGQ5ODE5OGVlNjQ5YS4uOTlmZmYyMzZiMTI3YWYzMjE4MjFkYTc5ZWIxMjhk MTg4Y2VmZjQ0YiAxMDA2NDQKLS0tIGEvU291cmNlL1dlYktpdDIvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJLaXQyL0NoYW5nZUxvZwpAQCAtMSwzICsxLDE1IEBACisyMDEzLTA2LTA3ICBMYW1h cnF1ZSBWLiBTb3V6YSAgPExhbWFycXVlLlNvdXphQGJhc3lza29tLmNvbT4KKworICAgICAgICBb UXRdIEFmdGVyIHRoZSB3ZWIgcHJvY2VzcyBjcmFzaGVzIGFuZCBpcyByZXN0YXJ0ZWQsIFdlYlZp ZXcuZXhwZXJpbWVudGFsLm9uTWVzc2FnZVJlY2VpdmVkIGlzIG5vdCBpbnZva2VkIGFueW1vcmUK KyAgICAgICAgaHR0cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTEwOTI4OAor CisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAgICAgIElmIFdlYlBy b2Nlc3MgY3Jhc2hlcyBRUXVpY2tXZWJWaWV3UHJpdmF0ZSBuZWVkcyB0byByZS1lbmFibGUgTmF2 aWdhdG9yUXRPYmplY3QgaW4gV2ViUHJvY2Vzcy4KKworICAgICAgICAqIFVJUHJvY2Vzcy9BUEkv cXQvcXF1aWNrd2Vidmlldy5jcHA6CisgICAgICAgIChRUXVpY2tXZWJWaWV3UHJpdmF0ZTo6ZGlk UmVsYXVuY2hQcm9jZXNzKTogUmUtZW5hYmxlIE5hdmlnYXRvclF0T2JqZWN0IGluIFdlYlByb2Nl c3MuCisKIDIwMTMtMDYtMDYgIFJhZmFlbCBCcmFuZGFvICA8cmFmYWVsLmxvYm9Ab3BlbmJvc3Nh Lm9yZz4KIAogICAgICAgICBbR3RrXSBDb25uZWN0aW9uIGlzIGxlYWtpbmcgd2hlbiBXZWJQcm9j ZXNzIGlzIHRlcm1pbmF0ZWQKZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJLaXQyL1VJUHJvY2Vzcy9B UEkvcXQvcXF1aWNrd2Vidmlldy5jcHAgYi9Tb3VyY2UvV2ViS2l0Mi9VSVByb2Nlc3MvQVBJL3F0 L3FxdWlja3dlYnZpZXcuY3BwCmluZGV4IDEyMTNmZDliMjAxODdiOTk1OTNmNDUwMWZjMmQ5MTZk NTdhMjY2MWEuLjg0MjE1ZjBkYTgxODU4NjE4ODEwYThiODlkYWE5MzNlMjcyNjhiYjggMTAwNjQ0 Ci0tLSBhL1NvdXJjZS9XZWJLaXQyL1VJUHJvY2Vzcy9BUEkvcXQvcXF1aWNrd2Vidmlldy5jcHAK KysrIGIvU291cmNlL1dlYktpdDIvVUlQcm9jZXNzL0FQSS9xdC9xcXVpY2t3ZWJ2aWV3LmNwcApA QCAtNjA0LDYgKzYwNCwxMiBAQCB2b2lkIFFRdWlja1dlYlZpZXdQcml2YXRlOjpkaWRSZWxhdW5j aFByb2Nlc3MoKQogewogICAgIHFXYXJuaW5nKCJXQVJOSU5HOiBUaGUgd2ViIHByb2Nlc3MgaGFz IGJlZW4gc3VjY2Vzc2Z1bGx5IHJlc3RhcnRlZC4iKTsKIAorICAgIC8vIFJlLWVuYWJsZSBuYXZp Z2F0b3IgUXRPYmplY3QgaW4gV2ViUHJvY2Vzcy4KKyAgICBpZiAobV9uYXZpZ2F0b3JRdE9iamVj dEVuYWJsZWQpIHsKKyAgICAgICAgbV9uYXZpZ2F0b3JRdE9iamVjdEVuYWJsZWQgPSBmYWxzZTsg Ly8gQXZvaWQgYXNzZXJ0IGluIHNldE5hdmlnYXRvclF0T2JqZWN0RW5hYmxlZC4KKyAgICAgICAg c2V0TmF2aWdhdG9yUXRPYmplY3RFbmFibGVkKHRydWUpOworICAgIH0KKwogICAgIGlmIChEcmF3 aW5nQXJlYVByb3h5ICpkcmF3aW5nQXJlYSA9IHdlYlBhZ2VQcm94eS0+ZHJhd2luZ0FyZWEoKSkg ewogICAgICAgICBkcmF3aW5nQXJlYS0+c2V0U2l6ZSh2aWV3U2l6ZSgpLCBJbnRTaXplKCksIElu dFNpemUoKSk7CiAK