Description of problem: Opened the web interface to Syncthing from the syncthing-icon gnome extension: https://extensions.gnome.org/extension/989/syncthing-icon/ It opened the browser window, tried to pop up an http auth login box, and immediately crashed. Version-Release number of selected component: webkitgtk4-2.18.5-1.fc27 Additional info: reporter: libreport-2.9.3 backtrace_rating: 4 cmdline: /usr/libexec/webkit2gtk-4.0/WebKitNetworkProcess 24 crash_function: WTF::Function<void (WebCore::Credential&&)>::operator()(WebCore::Credential&&) const executable: /usr/libexec/webkit2gtk-4.0/WebKitNetworkProcess journald_cursor: s=0497d77732be4d8cb7496406e5de0878;i=36717;b=362ab9eeb5eb4490a20f7dad3697eac2;m=4188d1a1f;t=562ded2cb13d4;x=2dc57380bfc0856a kernel: 4.14.13-300.fc27.x86_64 rootdir: / runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (10 frames) #0 WTF::Function<void (WebCore::Credential&&)>::operator()(WebCore::Credential&&) const at /usr/src/debug/webkitgtk4-2.18.5-1.fc27.x86_64/Source/WTF/wtf/Function.h:56 #1 WebCore::NetworkStorageSession::<lambda(GObject*, GAsyncResult*, gpointer)>::operator() at /usr/src/debug/webkitgtk4-2.18.5-1.fc27.x86_64/Source/WebCore/platform/network/soup/NetworkStorageSessionSoup.cpp:235 #2 WebCore::NetworkStorageSession::<lambda(GObject*, GAsyncResult*, gpointer)>::_FUN(GObject *, GAsyncResult *, gpointer) at /usr/src/debug/webkitgtk4-2.18.5-1.fc27.x86_64/Source/WebCore/platform/network/soup/NetworkStorageSessionSoup.cpp:251 #3 g_simple_async_result_complete at gsimpleasyncresult.c:801 #4 on_search_secrets at libsecret/secret-methods.c:98 #5 g_simple_async_result_complete at gsimpleasyncresult.c:801 #6 complete_in_idle_cb at gsimpleasyncresult.c:813 #12 WTF::RunLoop::run at /usr/src/debug/webkitgtk4-2.18.5-1.fc27.x86_64/Source/WTF/wtf/glib/RunLoopGLib.cpp:96 #13 WebKit::ChildProcessMain<WebKit::NetworkProcess, WebKit::NetworkProcessMain> at /usr/src/debug/webkitgtk4-2.18.5-1.fc27.x86_64/Source/WebKit/Shared/unix/ChildProcessMain.h:61 #15 _start
Created attachment 1381829 [details] File: backtrace
Created attachment 1381830 [details] File: cgroup
Created attachment 1381831 [details] File: core_backtrace
Created attachment 1381832 [details] File: cpuinfo
Created attachment 1381834 [details] File: dso_list
Created attachment 1381835 [details] File: environ
Created attachment 1381836 [details] File: exploitable
Created attachment 1381837 [details] File: limits
Created attachment 1381838 [details] File: maps
Created attachment 1381839 [details] File: mountinfo
Created attachment 1381840 [details] File: open_fds
Created attachment 1381841 [details] File: proc_pid_status
It's definitely related to HTTP auth, yes. Any chance you can still reproduce it?