+ http: New Raw-Request-URI header that can be added by the server if configured to do so.
+ can: Support access to the undecoded request target URL.

Access is a via a new Raw-Request-URI header, and only if the spray.can.server.raw-request-uri-header setting is set to on. It defaults to off.
+ servlet: Support access to the undecoded request URI.

Access is a via a new Raw-Request-URI header, and only if the spray.servlet.raw-request-uri-header setting is set to on. It defaults to off.