Too many redirects error when logging into multiple apps

Ran into an error trying to log in, specifically to the inrupt.net provider.

To reproduce, I logged first into develop.generator.inrupt.com using my jmartin.inrupt.net pod, then logged into localhost as the same pod. The first login was successful (and showed the login form on the provider as expected). The second login immediately showed a Chrome error, reading:

This page isn’t working
inrupt.net redirected you too many times.
Try clearing your cookies.
ERR_TOO_MANY_REDIRECTS

Clearing my cookies did indeed help, but I was able to reproduce this error a second time.

まずログインシーケンスを再現します。develop.generator.inrupt.com で認証し、次に同じ pod を使って localhost で認証して、inrupt.net でのリダイレクトループを確認します。Cookie を消去した状態でのログインとフローを比較し、アプリ間でのログイン成功を維持しながら、繰り返しのリダイレクトを防ぐ変更を特定します。