1 files changed, 8 insertions, 5 deletions
diff --git a/static/js/src/youtube.js b/static/js/src/youtube.js
index 7b819dc..2b6a977 100755
--- a/static/js/src/youtube.js
+++ b/static/js/src/youtube.js
@@ -17,16 +17,19 @@ Youtube = {
   
   "nextThumb": function(){
     var img = $(this);
-    // yt thumb url is http://i.ytimg.com/vi/0123456789A/1.jpg
-    var v = img.attr("src").substr(22,11)
-    var num = img.attr("src").charAt(34);
-    img.attr("src", (Youtube.nextThumbUrl(v, num)))
+    // yt thumb url example: https://i.ytimg.com/vi/0123456789A/1.jpg
+    var src = img.attr("src") || ""
+    var match = src.match(/\\/vi\\/([^/]{11})\\/(\\d)\\.jpg/i)
+    if (!match) return
+    var v = match[1]
+    var num = match[2]
+    img.attr("src", Youtube.nextThumbUrl(v, num))
   },
   
   "nextThumbUrl": function(v, num){
     if (!num) num = 0;
     num = (parseInt(num) % 3) + 1 // cycle over 1,2,3
-    return "http://i.ytimg.com/vi/" + v + "/" + num + ".jpg"
+    return "https://i.ytimg.com/vi/" + v + "/" + num + ".jpg"
   },
   
 }