273245 2024-04-25 05:49:06 -0700 REGRESSION(274201@main): Error embedding AT-SPI socket: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: org.freedesktop.DBus.Error.NameHasNoOwner 2024-10-09 08:19:03 -0700 1 1 1 Unclassified WebKit WebKitGTK WebKit Nightly Build PC Linux RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=273247 P2 Normal --- 1 mcatanzaro feaneron bugs-noreply mcatanzaro webkit-bug-importer oldest_to_newest 2031144 0 mcatanzaro 2024-04-25 05:49:06 -0700 With Epiphany Tech Preview using WebKitGTK 2.44.1: * Load about:overview in Epiphany * Load https://example.com You'll see this warning: (epiphany:2): Gtk-WARNING **: 07:46:40.187: Error embedding AT-SPI socket: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: org.freedesktop.DBus.Error.NameHasNoOwner Sometimes, but not always, simply opening a new tab is sufficient to trigger the warning to print. I have a huge spam of such warnings in my terminal. Georges says it's a GTK bug, https://gitlab.gnome.org/GNOME/gtk/-/issues/6581 2031147 1 mcatanzaro 2024-04-25 06:27:17 -0700 Pull request: https://github.com/WebKit/WebKit/pull/27740 2031153 2 mcatanzaro 2024-04-25 07:00:35 -0700 New finding: the warning occurs only under flatpak, and it seems to block a11y from working (at least, orca cannot read my web views) 2031154 3 mcatanzaro 2024-04-25 07:04:39 -0700 Notably, the name we're trying to own looks like this: /org/a11y/webkit/accessible/f0d99090_bf5d_4e81_af25_9c4d1eff7583 Matthias suggests xdg-dbus-proxy might be blocking us from owning the name. We might only have permission to own names that match the app ID? (However, it's strange that we don't see a separate error message for failing to own the name!) 2031155 4 mcatanzaro 2024-04-25 07:15:03 -0700 Matthias says no: there are no policies for ownership of object paths, only for bus names. 2031156 5 aperez 2024-04-25 07:18:08 -0700 While discussing in the WebKitGTK chat room we realized that the issue seems to pop only when running e.g. an Epiphany Flatpak. It should be easy enough restricting connections to the a11y socket iff !WTF::isInsideFlatpak() instead of a full revert. I am testing a patch in this direction and will submit an alternative PR momentarily. 2031157 6 mcatanzaro 2024-04-25 07:20:00 -0700 The actual bus name looks like ":1.261" but that seems expected. 2031159 7 aperez 2024-04-25 07:35:09 -0700 Pull request: https://github.com/WebKit/WebKit/pull/27741 2031163 8 mcatanzaro 2024-04-25 08:05:34 -0700 So poking around a bit more, I found AccessibilityAtspi::registerObject in AccessibilityAtspi.cpp is where the plug ID is actually coming from. And it's ignoring all D-Bus errors. ;) 2031566 9 ews-feeder 2024-04-26 12:32:09 -0700 Committed 278054@main (bfbc2e6fa7ad): <https://commits.webkit.org/278054@main> Reviewed commits have been landed. Closing PR #27741 and removing active labels. 2031590 10 aperez 2024-04-26 14:27:02 -0700 Reopening to do the actual fix later on =) 2053015 11 feaneron 2024-08-15 08:05:27 -0700 Pull request: https://github.com/WebKit/WebKit/pull/32247 2066521 12 ews-feeder 2024-10-09 08:19:01 -0700 Committed 284894@main (3672c423722b): <https://commits.webkit.org/284894@main> Reviewed commits have been landed. Closing PR #32247 and removing active labels.