1 files changed, 3 insertions, 0 deletions
diff --git a/src/js/utils.js b/src/js/utils.js
index 930d3e9f..1b64fc8d 100644
--- a/src/js/utils.js
+++ b/src/js/utils.js
@@ -50,6 +50,9 @@ const utils = {
         track(input) {
             return this.instanceof(input, TextTrack) || (!this.nullOrUndefined(input) && this.string(input.kind));
         },
+        url(input) {
+            return !this.nullOrUndefined(input) && /(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-/]))?/.test(input);
+        },
         nullOrUndefined(input) {
             return input === null || typeof input === 'undefined';
         },