The vertical scrollbar do not appears after the CSS class which suppress them gets removed. Attaching the test case. It fails on latests Safari for Windows, and Chrome for Ubuntu. The case contains a long text with vertical scrollbar, initially suppressed by css class. After pressing 'Unmask' the css class is being removed, but no scrollbars appears. Regards, Nickolay
Created attachment 51340 [details] test case
Created attachment 51925 [details] Patch v1
A few info in addition to WebCore/ChangeLog in my patch: - This issue also happens with horizontal scrollbars - I guess this was introduced in http://trac.webkit.org/changeset/5085 (so I'm CCing dhyatt) - I've confirmed my testcase doesn't show scrollbars without this patch
Your testcase doesn't have to contain so much text. It could be just <div style="height: 1000px">
Created attachment 51931 [details] Patch v2
Created attachment 51932 [details] Patch v2 - rebased
(In reply to comment #4) > Your testcase doesn't have to contain so much text. It could be just <div > style="height: 1000px"> Thanks for the comment! I've fixed my test case (and rebased to avoid purple bot status).
Comment on attachment 51931 [details] Patch v2 r=me
Comment on attachment 51932 [details] Patch v2 - rebased r=me
Attachment 51932 [details] was posted by a committer and has review+, assigning to Shinichiro Hamaji for commit.
Thanks for your quick reviews!
Committed r56764: <http://trac.webkit.org/changeset/56764>
Please check also the closely related bug: https://bugs.webkit.org/show_bug.cgi?id=39284 Seems this issue was fixed only on 50%. Regards, Nickolay