Bug 214336

Summary:	Bluetooth Game Controllers Unresponsive in Progressive Web Application on iOS 14 Beta 2
Product:	WebKit	Reporter:	goehdavi
Component:	WebKit API	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED CONFIGURATION CHANGED
Severity:	Critical	CC:	beidson, webkit-bug-importer
Priority:	P1	Keywords:	InRadar
Version:	Other
Hardware:	iPhone / iPad
OS:	Other

Description goehdavi 2020-07-14 19:39:37 PDT

Game controllers work in Safari, but not in a Progressive Web App using the Add to Home Screen functionality.

Comment 1 goehdavi 2020-07-14 20:36:08 PDT

Opening https://gamepad-tester.com/ in the PWA standalone mode reveals that game controllers are not showing up.

Comment 2 Radar WebKit Bug Importer 2020-07-14 22:28:28 PDT

<rdar://problem/65586008>

Comment 3 goehdavi 2020-07-15 15:37:18 PDT

Looks like PWAs on iOS are WKWebView based: https://bugs.webkit.org/show_bug.cgi?id=185448

and looks like GamePad API support was never added to WKWebView:
https://bugs.webkit.org/show_bug.cgi?id=205448

Comment 4 goehdavi 2020-07-15 22:58:10 PDT

This could also potentially be a first responder issue if the WKWebView in Web.app is not becoming the first responder.

Comment 5 Brady Eidson 2020-07-23 08:59:18 PDT

(In reply to goehdavi from comment #3)
> Looks like PWAs on iOS are WKWebView based:
> https://bugs.webkit.org/show_bug.cgi?id=185448
> 
> and looks like GamePad API support was never added to WKWebView:
> https://bugs.webkit.org/show_bug.cgi?id=205448

That one fell through the cracks, and is simply not true - Of course they work in WKWebView, because Safari uses WKWebView.

We heard another report from someone else a bit before you filed that gamepads weren't working in Save to Homescreen Web Apps on iOS.

Multiple engineers verified internally that on iOS 14 beta 3 (released yesterday) they work as expected. Please give it a shot on the new beta.

Comment 6 goehdavi 2020-07-23 13:28:26 PDT

Thanks! Verified that it is working in beta 3.