We are experiencing the same issue.
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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".
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.