Assertion: request's header field | /r/AtLocation | message
Facets:
value: if
type: DEGREE
Source sentences:
text: Multiple message-header fields with the same field-name MAY be present in a message if and only if the entire field-value for that header field is defined as a comma-separated list [i.e., #(values)].
text: Multiple HTTP-header fields with the same field-name may be present in a message if and only if the entire field-value for that header field is defined as a comma-separated list [i.e., #(values) ].