Fixed bug with upcase char

app/services/autocomplete_service.rb

@@ -6,6 +6,6 @@ class AutocompleteService
   end
 
   def query(query)
-    return open( "#{@url}:#{@port}?q=#{query}" ).read
+    return open( "#{@url}:#{@port}?q=#{query.downcase}" ).read
   end
 end