2.2.9.2 HTTP Header Fields Introduced by the BITS Upload Protocol

BITS-Packet-Type (section 2.2.1.2): The value MUST be Ack for this message.

BITS-Session-Id (section 2.2.1.2).

BITS-Error (section 2.2.1.2): This field MUST be present if the server encountered an error processing the request and MUST NOT be present otherwise.

BITS-Error-Context (section 2.2.1.2): This field MUST be present if the server encountered an error processing the request and MUST NOT be present otherwise.