Colon ':' breaks GET /ancestry/ REST API

[KeyboardNerd]

Description of Problem / Feature Request

when we request ancestry API with something like
/ancestry/sha256:12345

It will return 404 directly.

Expected Outcome

Actual Outcome

Environment

• Clair version/image: master
• Clair client name/version:
• Host OS:
• Kernel (e.g. uname -a):
• Kubernetes version (use kubectl version):
• Helm version (use helm version):
• Network/Firewall setup:

[KeyboardNerd]

This is a known issue in gRPC gateway.
grpc-ecosystem/grpc-gateway#224

[KeyboardNerd]

apparently because of backward compat issue, they are not going to resolve this problem.
I guess either to redesign this gateway API or change the dependency to be the commit before reverting "allowing colon" PR.

[hdonnay]

We’re declaring bug bankruptcy as part of the release process for a new major version of Clair. Please open a ticket in our issue tracker if you feel this still needs to be addressed, and we'll triage as part of our v4 development process. Thanks!