MIME type(s) desired by the Web Client for the response from the Server, as defined in the IETF RFC2616. This parameter is OPTIONAL.
The parameter name shall be “contentType”.
The value shall be a list of MIME types, separated by a "," character, and potentially associated with relative degree of preference, as specified in IETF RFC2616.
The Web Client shall provide list of content types it supports in the "Accept" field of the GET method. The value of the contentType parameter of the request shall be one of the values specified in that field.
Notes: 1. Typically the Accept field will be sent by a Web Client as “*/*”, which is compatible with any MIME types.
2. When this parameter is absent, the default content type of the response is dictated by the "MIME type constraints" sub-sections of Section 7 (i.e. 7.1.2, 7.2.2, 7.3.2, 7.4.2).