Firebase emulator bug with Nuxt i18n SSR

[parsher]

[REQUIRED] Environment info

**firebase-tools:7.8.1

**Platform:macOS

[REQUIRED] Test case

I made a git repository for you, please read README.md
https://github.com/parsher/firebase-nuxt-i18n-bug

[REQUIRED] Steps to reproduce

In git repository, I wrote the procedure to reproduce the bug.
Please read README.md
https://github.com/parsher/firebase-nuxt-i18n-bug

[REQUIRED] Expected behavior

Nuxt i18n's route replace should work properly on the emulator environment.(firebase serve)
Do not return the timeout error.

[REQUIRED] Actual behavior

Please read README.md
https://github.com/parsher/firebase-nuxt-i18n-bug

In sort, Firebase return the timeout error if I use route replace function,
or place this js plugins on not the last order.

I was digging out this problem for this all day.
Please check this problem if you have a time.