diff -r e5e31c75ce00 -r a894e8c92369 WebBrowser/AutoScroll/AutoScroller.py --- a/WebBrowser/AutoScroll/AutoScroller.py Mon May 02 20:14:37 2016 +0200 +++ b/WebBrowser/AutoScroll/AutoScroller.py Tue May 03 19:42:26 2016 +0200 @@ -204,6 +204,9 @@ out;""" res = view.page().execJavaScript(jsSource) + if res is None: + return False + vertical = res["vertical"] horizontal = res["horizontal"] if not vertical and not horizontal: