How should I interpret Heroku H18 errors?

Question

We\'re seeing quite a lot of Error H18 (Request Interrupted) in the logs. How should these be interpreted, since sock=client in all cases I assume that it is the client that

Answer 1

This typically indicates either that the user's network was disconnected (e.g. this happens with some frequency for mobile users) or the end-user closed their browser or similar (e.g. pressed Stop, went to a different page, etc).

You can safely ignore those that are tagged as being client-end in nature with "sock=client", but might want to investigate those that are being closed by the Server end ("sock=server").