NextJS 14 window is not defined

[alvarolozano]

I followed the whole guide to setup the tolgee for NextJS app router (https://docs.tolgee.io/js-sdk/integrations/react/next/app-router) and when the detectLanguageFromHeaders is invoked, it gives me the following error

Also, if I omit that part and set the language directly to de default it is working.

By researching in the code, I found that the DetectLanguage method called from the detectLanguageFromHeaders reads the window object, and as it is a server side code, it fails

[stepan662]

Thanks for reporting, I'll investigate.

[stepan662]

It's a bug, I've created a fix here tolgee/tolgee-js#3401