see comments in bug# 572982 .. please revert to xiphos-4.0.4 .. and mask for testing xiphos-4.0.4-r1 .. upstream issue WebKit2GTK+ Does not display properly under GTK 3.18 and GTK 3.20 #756 @ xiphos.org https://github.com/crosswire/xiphos/issues/756
We are handling it already in existing bug *** This bug has been marked as a duplicate of bug 572982 ***