13.4.3.2 Response Header Fields

13.4.3.2 Response Header Fields (Current)
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The origin server shall support header fields as required in Table 13.4.3-2.

Table 13.4.3-2. Response Header Fields

Name	Value	Origin Server Usage	Description
Content-Type	media-type	C	See Section 8.4.2.
Content-Encoding	encoding	C	See Section 8.4.2.
Content-Length	uint	C	See Section 8.4.3.
Retry-After	uint	O	The number of seconds the user agent is requested to wait until a (next) result check or retrying the request.

All success responses shall also contain the Content Representation (see Section 8.4.2) and Payload header fields (see Section 8.4.3) with appropriate values.

It is recommended that the text returned in the Warning header field (see [RFC7234] Section 5.5) contain a DICOM Status Code (see PS3.4 and Annex C “Status Type Encoding (Normative)” in PS3.7) and descriptive reason. For example:

Warning: A700 <service>: Out of memory