Same here. Horror. PWA, firease and ionic storage.
Losing connection to IndexDB.
And somehow I cannot debug anymore with Techpreviewer. You have the same issue? Web Inspector | Apple Developer Forums
I am not sure if the suggestion of @rapropos helps. I am using that one with Indexdb as driver, as per documentation.
I am not sure if I want to revert to localstorage instead of indexDB.
Biggest issue is instability.
btw, earlier I had similar issues, which were somehow related to me using firebase and its oauth stuff - that one also uses indexdb under the hood to persist stuff across redirect logins and such. Somehow I got that fixed to reduce the number of writes to storage - refactoring a large chunk of the code. iOS PWA Firebase and Storage blocks - can't find issue
And on a separate note, I noticed when the PWA has an unhandled exception, Safari freaks out really easily.