diff --git a/vnc_lite.html b/vnc_lite.html
index 828c5c81..a01e33d6 100644
--- a/vnc_lite.html
+++ b/vnc_lite.html
@@ -72,7 +72,7 @@
     <script>
         window.addEventListener("load", function() {
             if (window._noVNC_has_module_support) return;
-            var loader = document.createElement("script");
+            const loader = document.createElement("script");
             loader.src = "vendor/browser-es-module-loader/dist/browser-es-module-loader.js";
             document.head.appendChild(loader);
         });
@@ -83,8 +83,8 @@
         // RFB holds the API to connect and communicate with a VNC server
         import RFB from './core/rfb.js';
 
-        var rfb;
-        var desktopName;
+        let rfb;
+        let desktopName;
 
         // When this function is called we have received
         // a desktop name from the server
@@ -96,7 +96,7 @@
         // credentials to authenticate
         function credentials(e) {
             // Let's create a password input
-            var form = document.createElement('form');
+            const form = document.createElement('form');
             form.innerHTML = '<label></label>';
             form.innerHTML += '<input type=password size=10 id="password_input">';
             form.onsubmit = setPassword;
@@ -168,45 +168,43 @@
 
         // Read parameters specified in the URL query string
         // By default, use the host and port of server that served this file
-        var host = readQueryVariable('host', window.location.hostname);
-        var port = readQueryVariable('port', window.location.port);
-        var password = readQueryVariable('password', '');
-        var path = readQueryVariable('path', 'websockify');
+        const host = readQueryVariable('host', window.location.hostname);
+        let port = readQueryVariable('port', window.location.port);
+        const password = readQueryVariable('password', '');
+        const path = readQueryVariable('path', 'websockify');
 
         // | | |         | | |
         // | | | Connect | | |
         // v v v         v v v
-        (function() {
 
-            status("Connecting");
+        status("Connecting");
 
-            // Build the websocket URL used to connect
-            var url;
-            if (window.location.protocol === "https:") {
-                url = 'wss';
-            } else {
-                url = 'ws';
-            }
-            url += '://' + host;
-            if(port) {
-                url += ':' + port;
-            }
-            url += '/' + path;
+        // Build the websocket URL used to connect
+        let url;
+        if (window.location.protocol === "https:") {
+            url = 'wss';
+        } else {
+            url = 'ws';
+        }
+        url += '://' + host;
+        if(port) {
+            url += ':' + port;
+        }
+        url += '/' + path;
 
-            // Creating a new RFB object will start a new connection
-            rfb = new RFB(document.body, url,
-                          { credentials: { password: password } });
+        // Creating a new RFB object will start a new connection
+        rfb = new RFB(document.body, url,
+                      { credentials: { password: password } });
 
-            // Add listeners to important events from the RFB module
-            rfb.addEventListener("connect",  connected);
-            rfb.addEventListener("disconnect", disconnected);
-            rfb.addEventListener("credentialsrequired", credentials);
-            rfb.addEventListener("desktopname", updateDesktopName);
+        // Add listeners to important events from the RFB module
+        rfb.addEventListener("connect",  connected);
+        rfb.addEventListener("disconnect", disconnected);
+        rfb.addEventListener("credentialsrequired", credentials);
+        rfb.addEventListener("desktopname", updateDesktopName);
 
-            // Set parameters that can be changed on an active connection
-            rfb.viewOnly = readQueryVariable('view_only', false);
-            rfb.scaleViewport = readQueryVariable('scale', false);
-        })();
+        // Set parameters that can be changed on an active connection
+        rfb.viewOnly = readQueryVariable('view_only', false);
+        rfb.scaleViewport = readQueryVariable('scale', false);
     </script>
 </head>