187172 2018-06-29 02:39:37 -0700 [GTK] web inspector does not work with is-ephemeral set to true 2018-07-11 02:11:20 -0700 1 1 1 Unclassified WebKit WebKitGTK WebKit Nightly Build PC Linux RESOLVED INVALID Gtk P3 Normal --- 1 eg webkit-unassigned aperez bugs-noreply calvaris cgarcia mcatanzaro oldest_to_newest 1437730 0 eg 2018-06-29 02:39:37 -0700 Hi, it seems that the web inspector cannot be attached when is-ephemeral is set to TRUE. The docs only mention that developer-extras must be enabled. 1437731 1 eg 2018-06-29 02:43:39 -0700 Relevant code: https://github.com/gauteh/astroid/blob/41acfc5a6b800120e82fad5a6d02e17a604fc63f/src/modes/thread_view/thread_view.cc#L87 1437742 2 aperez 2018-06-29 03:50:41 -0700 Epiphany's incognito windows use ephemeral web contexts, and the inspector works fine there. I am not sure whether this would be the reason, but one difference between the code you linked from Astroid and Epiphany is: - Epiphany uses g_object_new() to pass *both* the WebKitWebContext and the WebKitSettings objects at construction time. - Astroid uses webkit_web_view_new_with_context(), which sets the WebKitWebContext only at construction time. After the WebKitWebView has been constructed, later on it uses webkit_web_view_set_settings(). Could it be that for some reason some settings cannot are not being applied correctly when the WebKitSettings is changed after construction and the WebKitWebContext is ephemeral? If there is something inside WebKit that prevents the second usage pattern, we should at least add some notes to the API documentation. I am adding Carlos García and Michael Catanzaro on CC, because they might have some idea about this. 1440837 3 eg 2018-07-10 07:33:50 -0700 Using g_object_new (...) and passing a context generated using ..context_new_ephemeral() as well as settings (not with any is-ephemeral property) works. 1441140 4 mcatanzaro 2018-07-11 02:11:20 -0700 You're trying to set the is-ephemeral property of WebKitWebSettings, which does not exist. I'm surprised there is no nasty runtime warning about this. is-ephemeral is a construct-only property of WebKitWebView and WebKitWebsiteDataManager. It's not a WebKitWebSettings property. The property cannot be changed after construct time.