[OASIS Issue Tracker] (ODATA-1436) Relax constraint that DELETE Cannot return data

Michael Pizzo created ODATA-1436:
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             Summary: Relax constraint that DELETE Cannot return data
                 Key: ODATA-1436
                 URL: https://issues.oasis-open.org/browse/ODATA-1436
             Project: OASIS Open Data Protocol (OData) TC
          Issue Type: New Feature
          Components: Protocol
    Affects Versions: V4.01_OS
         Environment: Proposed
            Reporter: Michael Pizzo
             Fix For: V4.01_ERRATA01


The current wording in [11.4.5 Delete an Entity](http://docs.oasis-open.org/odata/odata/v4.01/os/part1-protocol/odata-v4.01-os-part1-protocol.html#sec_DeleteanEntity) in [Protocol] states:

On successful completion of the delete, the response MUST be 204 No Content and contain an empty body.

This is overly restrictive.  HTTP allows Delete to return a response, and since we added a preference header for clients to request a response from requests that typically may not return responses, we should allow clients to request, and services to return, responses from DELETE (i.e., if return=representation preference is specified).

The response should be a representation of the deleted entity.



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