Bound the sign-in failure message carried back in the redirect

Shipped

September 5, 2026 at 6:37 AM UTC

Author

Kamo

Commit

2a34ad0

The RingCentral callback puts the server's own sentence in the query string so the member's tab can say what actually went wrong — nearly always an unregistered redirect URI or an app without the auth-code flow, neither guessable from "connection failed". An unexpected exception can carry a message far longer than a URL may usefully be, though, and losing the redirect loses the explanation along with it. Truncate at 300 characters; the full message is already logged.