update

node_modules/protocols/lib/index.js

@@ -6,7 +6,7 @@
  *
  * @name protocols
  * @function
- * @param {String} input The input url.
+ * @param {String|URL} input The input url (string or `URL` instance)
  * @param {Boolean|Number} first If `true`, the first protocol will be returned. If number, it will represent the zero-based index of the protocols array.
  * @return {Array|String} The array of protocols or the specified protocol.
  */
@@ -16,8 +16,16 @@ module.exports = function protocols(input, first) {
         first = 0;
     }
 
-    var index = input.indexOf("://"),
-        splits = input.substring(0, index).split("+").filter(Boolean);
+    var prots = "";
+    if (typeof input === "string") {
+        try {
+            prots = new URL(input).protocol;
+        } catch (e) {}
+    } else if (input && input.constructor === URL) {
+        prots = input.protocol;
+    }
+
+    var splits = prots.split(/\:|\+/).filter(Boolean);
 
     if (typeof first === "number") {
         return splits[first];