Added tests to verify that the 301 redirect returns query string
Added tests to verify that the 301 redirect returns query string

kiip/mux,heetch/mux,buddhamagnet/mux,TramPamPam/mux,beyang/mux-clone,vonwenm/mux,coolljt0725/mux,dvln/mux,CedarLogic/mux,gopherlabs/gopher-providers-mux,muroachanf/mux,Arkan/mux,Manbeardo/mux,gorilla/mux,w4ngyi/mux,jboelter/mux,scriptoLLC/mux,wfxiang08/mux,matk86/mux,studygolang/mux,Gorilla/mux,laohanlinux/mux,outrightmental/go-mux,pH14/mux,Vorstack/mux