Content-Type

media-type

C

Shall be present if the response has a payload

Content-Length

uint

C

Shall be present if a transfer coding has not been applied to the payload

Transfer-Encoding

encoding

C

Shall be present if transfer encoding has been applied to the payload

Content-Location

url

O

Shall be present if the response has a payload containing a resource. See Section 8.4.3.

May be present otherwise

Location

url

C

A URL-reference to the created Workitem.

Shall be present if a Workitem was created.

May be present if the payload contains a resource

Warning

See below

C

Shall be present if the Target Workitem was modified by the origin server and shall include the warning below