IOS Safari window.alert, window.confirm not working after onpopstate triggered

问题

After onpopstate event triggered, window.alert, window.confirm etc not working.

This is related console logs Image

And this is what I tested.

• First I registered popstate event.
• And tried window.alert('abc'); // It works.
• Tried history.back() or click back button, then popstate event triggered.
• And tried window.alert('abc'); // Not working.

I found the same issue, there is no answers left, so I post a question once again.
Alert, confirm, and prompt not working after using History API on Safari, iOS

• I can't do location.reload inside the onpopstate event because of some issues.

Is there any ios bug report?
or.. Does anyone know why this happenes or how to fix it?

来源：https://stackoverflow.com/questions/58022927/ios-safari-window-alert-window-confirm-not-working-after-onpopstate-triggered