[Webkit-unassigned] [Bug 153852] <body> with overflow:hidden CSS is scrollable on iOS

Sat Sep 21 04:01:09 PDT 2019

https://bugs.webkit.org/show_bug.cgi?id=153852

Bruno Stasse <augus.dupin at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |augus.dupin at gmail.com

--- Comment #33 from Bruno Stasse <augus.dupin at gmail.com> ---
The patch seems to have landed in iOS 13, but there are cases where it doesn't work.

Scroll on the body is prevented when:
- in Safari in portrait mode when the browser UI is fully visible (i.e. both the address bar and the toolbar bar are visible)
- in Safari in landscape mode (whether the browser UI is fully visible or not)
- in "in-app browsers" (whether the browser UI is fully visible or not)

Scroll on the body is not prevented when:
- in Safari in portrait mode when the browser UI is not fully visible (i.e. the address bar is retracted, and the toolbar bar fully collapsed), whether it is due to a scroll down or with the new "Hide toolbar" feature activated
- in "standalone mode", i.e. when the web page is added to homescreen and no browser UI is displayed.

These two cases are quite common and the behaviour not being consistent is problematic.

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