regex
Parameters
value
The value of the header must match the regular expression specified in regexMatch. For regular expression grammar, please see: en.cppreference.com/w/cpp/regex/ecmascript For matching against a port specified in the HTTP request, use a headerMatch with headerName set to PORT and a regular expression that satisfies the RFC2616 Host header's port specifier. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.