The value of the header should exactly match contents of exactMatch.
The header name to match on.
If set to false (default), the headerMatch is considered a match if the match criteria above are met. If set to true, the headerMatch is considered a match if the match criteria above are NOT met.
The value of the header must start with the contents of prefixMatch.
A header with the contents of headerName must exist. The match takes place whether or not the request's header has a value.
The value of the header must end with the contents of suffixMatch.