The qt_findAtNxFile helper in qicon.cpp expects a local file name that can be probed with QFile::exists. If the src attribute of an <img> element specifies the location of the image as a file:/ or qrc:/ url rather than as a local file name, then we need to strip the scheme off the file path, and in the case of a qrc URL leave the :/ prefix before calling the qt_findAtNxFile helper. Amends, and partially reverts, 760df7256588e76d082ea959399af36d7ba80a86. We can't avoid testing whether the source in the HTML is provided as a URL before interpreting it as a file name. Pick-to: 6.5 6.4 6.2 Fixes: QTBUG-109212 Change-Id: I7ea7a5bfde79bab90a8025c42e754129813dd0fc Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>