[Webkit-unassigned] [Bug 158342] Overlay with -webkit-overflow-scrolling:touch doesn't become scrollable after added text makes it taller

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=158342

--- Comment #9 from Frédéric Wang (:fredw) <fred.wang at free.fr> ---
Attachment 353483 is a reduced version of Ali's testcase. The first div already has tall content at page load and is indeed scrollable. The second div should become scrollable after 2 seconds but that's not the case on iOS.

Attachment 353484 is exactly the same but with position: absolute instead of position: fixed. The overflow nodes are all scrollable, as expected.

So it seems both dynamic resizing and "position: fixed" are important here.

Note: In general scroll chaining might make things confusing, see bug 176454 comment 7.

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