Created attachment 287274 [details] minimal example Since the update to webkitgtk4 version 2.12.4 (fedora 24) the rendering of FeedReader is broken. FeedReader uses WebKit.WebView.load_html() with the base_uri parameter. base_uri = 'null' still works as expected. But any other value makes the site look like this: http://imgur.com/gallery/ZDqFs Added small vala example that at least on my machine reproduces the results. I had similar problems even before version 2.12.4, but they disappeared after a second or so and looked thus more like flickering: https://bugs.webkit.org/show_bug.cgi?id=150574 Thx for your support :)
Turns out there were some relative paths to fonts in the CSS (not written by me) that caused the behavior. Big thx to KaL from #webkitgtk+