Changing "%u" to "%s" helps(?) (In Configuration Editor, /desktop/gnome/url-handlers/{http,https,about,..}) (These are the keys which get added when "preferred applications" is launched.) (Sorry, I have no time to double-check these. "Best guess".)
Changing "%u" to "%s" helps(?) gnome/url- handlers/ {http,https, about,. .})
(In Configuration Editor, /desktop/
(These are the keys which get added when "preferred applications" is launched.)
(Sorry, I have no time to double-check these. "Best guess".)