mod_http_oauth2: Validate redirect URI depending on application type Per https://openid.net/specs/openid-connect-registration-1_0.html require that web applications use https:// and native applications must use either http://localhost or a custom (non-https) URI. Previous requirement that hostname matches that of client_uri is kept for web applications.

This module writes out a traceback to `traceback.txt` in Prosodys data
directory (see `prosodyctl about`) when the signal `SIGUSR1` is
received. This is useful when debugging seemingly frozen instances in
case it is stuck in Lua code.