[v3] localstorage seems not to persist via redirects

[burner-account]

Imagine the following redirect flow:

1. The user uses the wails app, something is stored in localstorage.
2. The web-app part of wails (JS) triggers a redirect to another page https://some.real.www.domain.com.
3. The other page from step 2. redirects back to the wails app on http://localhost/some/path
   (Let's ignore the http://localhost part and related problems with dev/production build for now.)

Problem:
Debugging after step 1. shows the data successfully written to localstorage.
Debugging after step 3. show a blank, clean localstorage.

Thoughts:
Either the localstorage is not persistet or somehow webkit seems to think that the wails app from step 1 and the wails app from after step 3 are different and does not share the data.

The only thing that looked related (i have no webkit experience) was https://webkitgtk.org/reference/webkit2gtk/2.41.2/class.WebsiteDataManager.html but i found nothing interesting regarding this in the v3/internal/assetserver/webview/ directory.

Question:
Should/Does localstorage usually persist across such redirects in wails apps?

Thanks for your guidance.