Error embedding AT-SPI socket: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: org.freedesktop.DBus.Error.NameHasNoOwner
When starting Epiphany Tech Preview, the following warnings print in my terminal:
(epiphany:3): Gtk-WARNING **: 10:52:59.688: Error embedding AT-SPI socket: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: org.freedesktop.DBus.Error.NameHasNoOwner
(epiphany:3): Gtk-WARNING **: 10:52:59.790: Error embedding AT-SPI socket: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: org.freedesktop.DBus.Error.NameHasNoOwner
The warnings are coming from socket_embedded_cb() in gtkatspisocket.c. Presumably this is a regression from WebKitGTK's new accessibility support. The error occurs when connecting to a WebKit-specific object path:
(gdb) print self->object_path
$3 = 0x555556fc4d80 "/org/a11y/webkit/accessible/f0d99090_bf5d_4e81_af25_9c4d1eff7583"
I assumed the lack of name owner was surely a WebKitGTK bug, but @feaneron does not agree and asked me to report it to GTK instead.