Authorization header does not propagate to /api/metrics/* endpoints

[th3M1ke]

Describe the bug
Jaeger query doesn't propagate auth token on the /api/metrics/* endpoints.

To Reproduce
Steps to reproduce the behaviour:

1. Start jaeger-query with QUERY_BEARER_TOKEN_PROPAGATION=true
2. make a GET request to /api/metrics/latencies?service=jaeger-query&endTs=1635219714184&... with an authorization token
3. inspect jaeger-query request headers

Expected behaviour
The /api/metrics/* endpoints should propagate the auth token the same way it does on other endpoints (/operations, /traces, etc.)

Version (please complete the following information):

• OS: [macOS]
• Jaeger version: [1.27]
• Deployment: [Docker]

[albertteoh]

Thanks for reporting @th3M1ke. I can take a look at this tomorrow.

[albertteoh]

@th3M1ke how are you passing the authorization token in the GET request?