There is a workaround in the Angular GitHub repo's issue list. It has worked for us https://github.com/angular/angular/issues/50378#issuecomment-1716430091 I hope this helps you.

Exact error in Safari we are getting some times is: Safari can't open the page. There error was: "FetchEvent.respondWith received an error: TypeError: Internal error".

We are experiencing the same issue.