[Webkit-unassigned] [Bug 235891] Native keyboard, select list and file selector not displaying in iPad PWA

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=235891

Mark de Jong <spellcoder at gmail.com> changed:

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--- Comment #7 from Mark de Jong <spellcoder at gmail.com> ---
I've also run into this issue with pulldown dropdowns not appearing. (in a PWA for two universities to register interest of visitors on an iPad)
There are also other mentions only about this issue on developer.apple.com and StackOverflow.

How to reproduce it:
- Have a html file with <meta name="apple-mobile-web-app-capable" content="yes" /> and a select element
- Use an iPhone/iPad/simulator on a device with home button and with any iOS 15 version (tested up till 15.4)
- Visit the html page in Safari and use the share button to add it to the home screen
- Open the app from the home screen
- Activate (tap) a pulldown
- Click on the home button on the bottom of the iPhone or iPad
- Now click on the icon on the home screen again
- What often happens: the options popup isn't closed or no pulldown on the page can open the options popup. If the options popup stays open you'll at first still be able to scroll it but you cannot get it to close.
- If it doesn't happen you can try to restart the device and retry above steps (starting from opening the homescreen app)

Some interesting points I notices:
- This bug seems to be triggered on devices with a home button. My guess is that this is because using a gesture on the screen to switch apps cause the pulldown to be closed and so prevents the bug from being triggered)
- switching to another web-capable page added to the homescreen and then switching back makes the pulldowns respond again(!)
- one report also noted the date input control also has this issue
- it seems dropdowns may be there but invisible because you sometimes select an option when clicking somewhere on the page where the dropdown could be (I also have seen this happen)

Other mentions online about this issue:
- https://developer.apple.com/forums/thread/689901 (issue with ios 15 beta 8)
- https://developer.apple.com/forums/thread/691863 (issue with select reported on the final ios 15)
- https://developer.apple.com/forums/thread/699982m (mention of someone reporting it for iOS 15.1)
- https://stackoverflow.com/questions/70292301/ios-native-controls-invisible-hidden-in-pwa
- https://developer.apple.com/forums/thread/696346
- https://githubhot.com/repo/babybuddy/babybuddy/issues/381
- https://stackoverflow.com/questions/70834688/intermittent-html-select-freezes-on-safari-in-ios-15-onwards/71035270

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