I have a PWA that I\'ve been using perfectly till I updated my phone to 11.3 (introduce Service Workers supports, so in my iPhone it was only a bookmark) and all worked
I managed to fix this by removing the manifest meta tag:
My project is a simple PWA that uses Google's OAuth for login. I was getting redirected to Safari to login and unable to go back to the app (on my home screen). Hope it works for you too, I wasted 2 days trying to find a solution.
The reply by Anand tells me that offline capable PWAs need to implement service workers, since they are supported in 11.3 (or 11.4, not sure) and NOT manifests.
Anyways, this worked for me, hope it helps others as well.