Remove cookie user errors from TO error.log

[ericholguin]

Currently, if a user's cookie is expired or has an incorrect signature these will log as errors in error.log, however this is normal functionality and a user error not a system error that needs to be logged in error.log.

This Improvement request (usability, performance, tech debt, etc.) affects these Traffic Control components:

• Traffic Ops

Current behavior:

error.log:

ERROR: api.go:263: --- error parsing cookie: bad signature
ERROR: api.go:263: --- error parsing cookie: signature expired

New behavior:

The error's above should no longer appear in error.log

[smalenfant]

Is this coming from a Client that doesn't observe the expiration?

[ericholguin]

Yes, in this case I believe t3c isn't observing that expiration.

[ocket8888]

Yeah, the official TO Go client does that. You can see it in the logs for CDN-in-a-Box coming from TM and t3c.