why window.history.state.idx changes to NaN?

[thkim9012]

when navigate path with url has ended pound sign, window.history.state.idx changes to NaN

I don't know why it is NaN..

[takapiro99]

experiencing the same problem, it occurs very rarely and randomly. (can't reproduce)
can't figure out why it happens and even if caused by react-router.
I found it happens on mac and windows chrome (with very random page transitions)

when navigate path with url has ended pound sign

the problem happens even if not ends with pound sign in my environment

[tgyou]

@thkim9012
downgrade to 6.3.0.
I have also been having problems since the 6.4.0 update.

[thkim9012]

@tgyou It is the same in v6.3.0.

[thkim9012]

it causes trouble for "useBlocker" and "usePrompt" which is removed in v6.