remove hard coded regular expression

actionpack/lib/action_dispatch/journey/route.rb

@@ -112,6 +112,10 @@ def ip
         constraints[:ip] || //
       end
 
+      def requires_matching_verb?
+        constraints[:request_method]
+      end
+
       def verb
         constraints[:request_method] || //
       end

actionpack/lib/action_dispatch/journey/router.rb

@@ -120,7 +120,7 @@ def find_routes req
         end
 
         def match_head_routes(routes, req)
-          verb_specific_routes = routes.reject { |route| route.verb == // }
+          verb_specific_routes = routes.select(&:requires_matching_verb?)
           head_routes = match_routes(verb_specific_routes, req)
 
           if head_routes.empty?