Language switching does not work when browser language is configuired in drupal 8.3.7 Language switching fails after enabling browser on  Detection and selection


  /admin/config/regional/language/detection


Exisiting :

On switching language from the browser the url changes but the content remains the same

E.g, Default language browser is Germen.

mywebsite.com mywebsite.com/about etc shows German content.

While swiched to English url changes to mywebsite.com/en mywebsite.com/en/about etc 

It shows Germen content instead of English.

Expected

On browser configured with Germen as default language, the site url should be mywebsite.com/de.

When I swich to the English website, it should show English content

Please find the configuration.
It is very obvious why this is happening. Language selection process the language detection systems from top to bottom. (Top has highest priority.) Your configuration means that the browser will always be selected first and that url and user settings are ignored. 

If you move browser below user (drag with the arrows icon), the processing order will be:


url
user (if url resolved no language)
browser (if user had no language configured)