Bug 199947

Summary: Scrollbar is hidden on mobile when using e.preventDefault() in touchMove event
Product: WebKit Reporter: Alvaro <atrigol>
Component: ScrollingAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: gambard, simon.fraser, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: All   
OS: All   
Attachments:
Description Flags
Scrollbar is hidden on mobile when using e.preventDefault() in touchMove event none

Alvaro
Reported 2019-07-19 09:30:23 PDT
Created attachment 374469 [details] Scrollbar is hidden on mobile when using e.preventDefault() in touchMove event When the page scroll gets fired from JS by using a touchmove event and using e.preventDefault() inside it, then the page scrolls as normally but the scroll bar is not visible during the process. This way the user doesn't have a way to know in which part of the page is or get a real felling of scrolling the page. Steps to reproduce: - Open the file I attach in Safari or Chrome for iOS - Tap and swipe down a bit - You'll see how the page scrolls down fired by JS but the scrollbar is not visible. This didn't happen in past versions of Safari or Chrome for iOS.
Attachments
Scrollbar is hidden on mobile when using e.preventDefault() in touchMove event (1.92 KB, text/html)
2019-07-19 09:30 PDT, Alvaro 		no flags
Details
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Simon Fraser (smfr)
Comment 1 2020-01-13 14:40:22 PST
*** Bug 205603 has been marked as a duplicate of this bug. ***
Simon Fraser (smfr)
Comment 2 2020-01-13 14:40:59 PST
<rdar://problem/58226156>
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