Refactored and cleaned up

public/js/index.js

@@ -1,20 +1,4 @@
-const app = new PIXI.Application({
-    autoResize: true,
-    resolution: devicePixelRatio,
-    backgroundColor: 0x0073db
+window.addEventListener('beforeunload', function (e) {
+    // Prevent user from exiting page
+    e.preventDefault();
 });
-document.getElementById('game').appendChild(app.view);
-
-
-// -------------------------------------- code --------------------------------------
-
-// ------------------------------------ end code ------------------------------------
-
-
-// Resize (Do Not modify)
-window.addEventListener('resize', resize);
-function resize() {
-    let game = document.getElementById('game');
-    app.renderer.resize(game.offsetWidth, game.offsetHeight);
-}
-resize();