diff --git a/12/liveplayer.js b/12/liveplayer.js
index 443a3cf..df736f0 100644
--- a/12/liveplayer.js
+++ b/12/liveplayer.js
@@ -1,7 +1,7 @@
 function liveplayer (elt) {
   var last_timestamp,
-      DELAY_TIME_SECS = 5
-  	original.src=iframe.src;
+      DELAY_TIME_SECS = 5,
+  	  originalsrc= iframe ? iframe.src : '';
 
   async function poll () {
       console.log("poll");