Created attachment 279954 [details] sample web page to show rendering issues Always reproducible by using the attached HTML files with 2.12.3 version of WebKitGtk using MiniBrowser running on Fedora 21 Desktop MiniBrowser <filename> --bg-color="rgba(0,0,0,0)" Works correctly without transparent background. If more details are required about the different packages installed on the system, please let me know.
*** This bug has been marked as a duplicate of bug 159455 ***