iOS 26 “Your browser is not supported”

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Steps to reproduce

1. Update to iOS 26
2. Attempt login

Expected behaviour

Tell us what should happen

Actual behaviour

Tell us what happens instead, if possible also add a screenshot
Warning saying the browser is not supported no matter the default browser on iOS. Logs in to the website but does not redirect back to the app to allow for backups, etc

Logs

If applicable, you can post the iOS app or server logs (removing any sensitive information).

Reasoning or why should it be changed/implemented?

Environment data

iOS version: e.g. iOS 26.0

Nextcloud iOS app version: 7.1.7

Server operating system: TrueNAS Scale (App store)

Web server: nginx

Database:

PHP version:

Nextcloud version: 32.0.0

Begin by reproducing the login flow on iOS 26 with the Nextcloud iOS app version and server setup listed in the report. Trace the browser handoff and redirect back to the app; done means supported-browser detection no longer blocks login and the app resumes after authentication for backups and other actions.