IMSG and headers

Headers added by IMSG

Header	Description	Removed by SAL
authorization	Contains the service token.	Yes
x-imid-req-id	A unique id for the request. Used for debugging purposes.	Yes
x-imid-token	Contains the IMID token if INCLUDE_IMID_TOKEN_IN_REQUEST is set to true.	Yes
x-forwarded-for	Used for identifying the originating IP address of the client. If included in the request, the original value will be prepended to the final header.	No
x-forwarded-port	Used for identifying the port that the client used to connect. If included in the request, the original value will be used.	No
x-forwarded-proto	Used for identifying the protocol (HTTP or HTTPS) that the client used to connect. If included in the request, the original value will be used.	No
x-forwarded-host	Used for identifying the original host requested by the client. If included in the request, the original value will be used.	No

Any headers not in the list will be forwarded to the service unmodified.