253793 2023-03-12 07:05:56 -0700 [GTK] GTK4 doesn't render GitHub, stuck on clipboard error 2023-03-13 04:37:33 -0700 1 1 1 Unclassified WebKit WebKitGTK WebKit Nightly Build PC Linux RESOLVED DUPLICATE 211979 https://github.com/webcompat/web-bugs/issues/119474 P2 Normal --- 1 feaneron webkit-unassigned aperez bugs-noreply mcatanzaro oldest_to_newest 1940702 0 feaneron 2023-03-12 07:05:56 -0700 Epiphany 44.rc-21-gc7d32ff37+ (GNOME Nightly Flatpak) WebKitGTK 2.39.91 GStreamer 1.20.5 GitHub doesn't render. I can still interact with (invisible) elements in the page, but the page is simply empty. Opening the inspector makes the page render in a broken state, and shows me that GitHub is spamming with clipboard-related errors like this: [Error] Unhandled Promise Rejection: TypeError: undefined is not an object (evaluating 'navigator.clipboard.read') K (vendors-node_modules_stacktrace-parser_dist_stack-trace-parser_esm_js-node_modules_github_bro-327bbf-0aaeb22dd2a5.js:1:8117) every (anonymous function) (environment-7dd847af758e.js:1:5328) y (environment-7dd847af758e.js:1:5532) h (environment-7dd847af758e.js:1:5291) (anonymous function) (environment-7dd847af758e.js:1:4196) This happens with the MiniBrowser too. 1940703 1 mcatanzaro 2023-03-12 08:44:52 -0700 *** This bug has been marked as a duplicate of bug 211979 *** 1940805 2 aperez 2023-03-13 01:12:48 -0700 For the people arriving here searching, it is possible to workaround things a bit to make GitHub at least usable. Place this line added in the ~/.local/share/epiphany/user-javascript.js file and enable the user JavaScript in GNOME Web's preferences: navigator.clipboard = {}; The above prevents the console log continuous spam, which was taking so much time that WebKit didn't have the chance to show the rendered pages. 1940826 3 feaneron 2023-03-13 04:37:33 -0700 Thanks Adrian. Can confirm it works. To anyone reading it: don't forget to enable user JavaScript in GNOME Web's preferences dialog after creating user-javascript.js!