On a busy sites this fills up the error log:
webmachine error: path="/postback"
Should we have a more elegant 'cleanup' for requests that get aborted by the client?
Makes me wonder.
Client isn't interested anymore, server side is as happy with an error as with a successful request. Also, lager logs this in a less verbose way (I think). Good enough for now I would say.
reopen if this is to be fixed...