diff --git a/js/main.js b/js/main.js
index a92b8084c7..6ce5e6062c 100644
--- a/js/main.js
+++ b/js/main.js
@@ -1,15 +1,3 @@
-// Main window handlers
-var chrome_window = chrome.app.window.current();
-
-// This "automatic BUS close" feature is highly EXPERIMENTAL and could cause problems
-chrome_window.onClosed.addListener(function() {
-    if (connectionId != -1) {
-        // connection still appears to be active
-        // we will try to "automatically" disconnect if possible to free the port
-        $('div#port-picker a.connect').click();
-    }
-});
-
 // OS detection
 var OS = "Unknown";
 if (navigator.appVersion.indexOf("Win") != -1)   OS = "Windows";