Merge pull request #40 from budu/fix-headers-content-type-check

Make reload works in Rails error pages

lib/rails_live_reload/middleware/base.rb

@@ -57,7 +57,7 @@ def make_new_response(body)
       end
 
       def html?(headers)
-        headers["Content-Type"].to_s.include?("text/html")
+        headers["content-type"].to_s.include?("text/html")
       end
     end
   end