expose a request path label (prototype)

[empire]

This pull request demonstrates that the request path label can be supported without any security concerns.

[empire]

I've opened a conversation at the google group.

[stale[bot]]

Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.