Loading
Bug 1873763: Add 'overflow:hidden' to root scroller in some grid reftests, to...
Bug 1873763: Add 'overflow:hidden' to root scroller in some grid reftests, to avoid running afoul of scrollbar-presence nondeterminism. a=diannaS This is a workaround for an edge-case where the default 'overflow:auto' setup can lead to a layout with or without a scrollbar, depending on whether the first layout happens before vs. after the DOM is fully complete. See explanations in https://bugzilla.mozilla.org/show_bug.cgi?id=1873763#c0 and in https://bugzilla.mozilla.org/show_bug.cgi?id=1873749 for more details. This behavior seems to be common to all major browser engines, so it's probably not worth worrying about too much, which is why I'm simply working around it in these tests. The changes to the -001 test files will address intermittent bug 1522442, and the changes to the -010 and -011 test files are to address intermittent bug 1809735. Original Revision: https://phabricator.services.mozilla.com/D198080 Differential Revision: https://phabricator.services.mozilla.com/D202738