It is not possible to scroll an iframe with style="overflow: hidden", using the scroll wheel. I saw this bug only in QtWebKit port (tested on Ubuntu). Safari and Chromium (Windows and Ubuntu) do not have this issue.
Created attachment 73493 [details] Test case
Works for me with WebKit trunk. Any more info to reproduce the issue?
Benjamin, how do firefox or webkit-based browsers work here? it might be better to compat with them
(In reply to comment #3) > Benjamin, how do firefox or webkit-based browsers work here? it might be better to compat with them Here, I can't see any difference between QtWebKit trunk and Safari Trunk, both ignore the overflow attribute. For me, Firefox handle iframe incorrectly. It considers the element as a block layout, even though the suggested stylesheet does not defined them as such: http://www.w3.org/TR/CSS21/sample.html In my opinion the overflow should not apply on iframe.
Sorry guys, I compared the behavior of QtWebKit to an old version of Chromium, and filed the bug due to a difference in behavior. After updating my Chromium build, they behave the same, and I don't think this is a bug. I'll close it shortly, and sorry for the inconvenience.
(In reply to comment #5) > I'll close it shortly, and sorry for the inconvenience. Too late, It's been closed already :-)