Bug 196355

Summary: Application freeze as when device kept idle for few minutes and app in background
Product: WebKit Reporter: Samaresh Sahoo <samaresh.sahoo>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Critical CC: bfulgham, cdumez, craig, samaresh.sahoo, simon.fraser, smoley, thorton, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: Safari 12   
Hardware: iPhone / iPad   
OS: iOS 12   
Attachments:
Description Flags
console log take from the iphone device
none
console log taken from the iphone device
none
test app none

Description Samaresh Sahoo 2019-03-28 08:40:09 PDT
Created attachment 366177 [details]
console log take from the iphone device

We have a Hybrid mobile application. on iOS 12, we are using WKWebView. I minimise the application so that it goes in the background. I wait for the screen to lock and the application is suspended. Now, I unlock the application and tap on the application icon and bring it to the foreground. The app does not respond to the user action - e.g. tap. When I look at the log, I see the following message: check the attachment image1.png

To recover, I lock the device and unlock it (while the application is still in foreground). The application recovers and starts responding. In this case, I see the following messages in the log: check the attachment image2.png

I tried searching but could not find a related issue. Kindly suggest if I need to look into something specific. Would appreciate all the help as this is impacting our customers.
Comment 1 Samaresh Sahoo 2019-03-28 08:40:45 PDT
Created attachment 366178 [details]
console log taken from the iphone device
Comment 2 Radar WebKit Bug Importer 2019-03-28 09:51:08 PDT
<rdar://problem/49382783>
Comment 3 Smoley 2019-03-28 16:46:46 PDT
Samaresh would it be possible to provide a reduced test case? Thanks
Comment 4 Samaresh Sahoo 2019-03-29 06:03:13 PDT
Created attachment 366268 [details]
test app

Added the sample test app
Comment 5 Samaresh Sahoo 2019-04-02 04:53:12 PDT
Any Update???