diff --git a/examples/pagemirror_extension/content_script.js b/examples/pagemirror_extension/content_script.js
index bed157a..de0c46b 100644
--- a/examples/pagemirror_extension/content_script.js
+++ b/examples/pagemirror_extension/content_script.js
@@ -17,7 +17,6 @@ var observer;
 if (typeof WebKitMutationObserver != 'function') {
   console.error('This example extension requires MutationObservers. ' +
                 'Try the Chrome Canary build.');
-  return;
 }
 
 chrome.extension.onConnect.addListener(function(port) {
@@ -42,4 +41,4 @@ chrome.extension.onConnect.addListener(function(port) {
   port.onDisconnect.addListener(function() {
     mirrorClient.disconnect();
   });
-});
\ No newline at end of file
+});