def validate_location!(response)
      return if location.nil? || location === response.headers['Location']
      raise Exceptions::Validation.new("LOCATION does not match #{location.inspect}")
    end
def validate_location!(response)
      return if location.nil? || location === response.headers['Location']
      raise Exceptions::Validation.new("LOCATION does not match #{location.inspect}")
    end
Validates 'Location' header

 @raise [Exceptions::Validation] When location header does not match to the defined one.