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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - REGRESSION(r188659): Non main frame scrollable areas don't work for pages restored from the page cache"
href="https://bugs.webkit.org/show_bug.cgi?id=153404#c18">Comment # 18</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - REGRESSION(r188659): Non main frame scrollable areas don't work for pages restored from the page cache"
href="https://bugs.webkit.org/show_bug.cgi?id=153404">bug 153404</a>
from <span class="vcard"><a class="email" href="mailto:cgarcia@igalia.com" title="Carlos Garcia Campos <cgarcia@igalia.com>"> <span class="fn">Carlos Garcia Campos</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=153404#c16">comment #16</a>)
<span class="quote">> Adding tests that detect the regression via <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Add tests for iframe and overflow scrollability after navigating back"
href="show_bug.cgi?id=154300">bug 154300</a>.</span >
The problem of this regression was not that scrollable areas were not scrollable after being restored from the page cache, that still worked (at least in GTK+ port), because the scrollable areas still existed and the event handler correctly passed the wheel events to them. The problem was that the scroll animator was not notified when the mouse entered or exited the scrollable areas, which is what we use to show/hide the overlay scrollbars. I'll add a new test for this particular case.</pre>
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