Merge pull request ipfs/kubo#7727 from ipfs/fix/preserver-query-on-we…

…bsite-redirect

fix(gw): preserve query on website redirect

This commit was moved from ipfs/kubo@0700c74

gateway/core/corehttp/gateway_handler.go

@@ -290,7 +290,12 @@ func (i *gatewayHandler) getOrHeadHandler(w http.ResponseWriter, r *http.Request
 		goget := r.URL.Query().Get("go-get") == "1"
 		if dirwithoutslash && !goget {
 			// See comment above where originalUrlPath is declared.
-			http.Redirect(w, r, originalUrlPath+"/", 302)
+			suffix := "/"
+			if r.URL.RawQuery != "" {
+				// preserve query parameters
+				suffix = suffix + "?" + r.URL.RawQuery
+			}
+			http.Redirect(w, r, originalUrlPath+suffix, 302)
 			return
 		}