Problems with nil queries

[Chiro1975]

The API can't process a query that has invalid words. For example, "<>" or "." or "" provoke that the Urban Dictionary crashes. It has problems with all the queries that has no alphanumeric characters.

[elifoster]

This appears to be a problem with the Urban Dictionary API itself. Escaping the characters is not a solution because it changes the results (%3C on Urban Dictionary is different from <). I will add a half-solution of producing a clearer error so you can catch it in your code and alert the user of the problem.