removeParamsWithParams = 
  "http://a.b.c/d" @=? roundtrip removeParams "http://a.b.c/d?e=f"
removeParamsWithParams = 
  "http://a.b.c/d" @=? roundtrip removeParams "http://a.b.c/d?e=f"
removeParamsWithParams = 
  "http://a.b.c/d" @=? roundtrip removeParams "http://a.b.c/d?e=f"