I’m using Perl (LWP::UserAgent) and the processing is:
/callback/list?token=<token> → OK (response with one callback with id 0)
As I detect, that “my” callback is missing, I fire:
http://192.168.0.21:8080/callback/add?url=http%3A%2F%2Floxberry-dev.brunnenweg.lan%3A80%2Fplugins%2Fnukismartlock%2Fcallback.php&token=<token>
→ Getting a HTTP 500
After this, the Bridge dies with all further requests leading to HTTP 503 Unavailable or not answering anymore.
Unplugging and re-plugging will bring it back to normal operation, until the next try.