Add error message for #798

package.json

@@ -2,7 +2,7 @@
   "author": "Calvin Montgomery",
   "name": "CyTube",
   "description": "Online media synchronizer and chat",
-  "version": "3.63.3",
+  "version": "3.63.4",
   "repository": {
     "url": "http://github.com/calzoneman/sync"
   },

src/get-info.js

@@ -416,6 +416,13 @@ var Getters = {
 
     /* HLS stream */
     hl: function (id, callback) {
+        if (!/^https/.test(id)) {
+            callback(
+                "HLS links must start with HTTPS due to browser security " +
+                "policy.  See https://git.io/vpDLK for details."
+            );
+            return;
+        }
         var title = "Livestream";
         var media = new Media(id, title, "--:--", "hl");
         callback(false, media);