[BUG] bfcache Issue

[BrocksiNet]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

That's the problem

That could be a solution
nuxt/nuxt#23667

Expected Behavior

The Issue is not shown anymore in Lighthouse for the demo-store.
The demo-store works like before without any errors.

Steps To Reproduce

No response

Environment

No response

Anything else?

Another related #539

[InstantlyMoist]

Currently having the same issue, no dependencies seem to interfere with it.

[BrocksiNet]

I was researching a lot today about that issue. 🔍

I assume that the issue comes from nuxt i18n module.

So I created a empty nuxt/vite project with that command:
pnpm dlx nuxi@latest init <project-name>

Testing this in preview mode is important because Vite is opening a WebSocket in dev mode, which can also cause an issue with bfcache.

So the steps for testing are:

1. pnpm build
2. pnpm preview
3. Open the Page in a Chrome Browser
4. Open Dev Tools -> Application -> Back/Forward Cache -> Click on Test Button

Result:

• Blank Nuxt/Vite Project -> No bfcache Issue ✔️
• Blank Nuxt/Vite Project + i18n module -> bfcache Issue ❌

Somehow I assume it has something to do with detectBrowserLanguage function. But not sure about that. 😕

Created an Issue here: nuxt-modules/i18n#2876