diff --git a/Examples/Emscripten/Cxx/Cone/index.html b/Examples/Emscripten/Cxx/Cone/index.html
index 3d00acf1c3edaabda470dbcdb93174187a6c8533..428efa26456a2aaad64f8b926c8e7492754018a3 100644
--- a/Examples/Emscripten/Cxx/Cone/index.html
+++ b/Examples/Emscripten/Cxx/Cone/index.html
@@ -1,33 +1,50 @@
<!doctype html>
<html>
- <head>
- <meta charset="utf-8"/>
- </head>
- <body>
- <canvas id="canvas" style="position: absolute; left: 0; top: 0;"></canvas>
- <script type="text/javascript" src="Cone.js"></script>
- <script type='text/javascript'>
- var Module = {
- canvas: (function() {
- var canvas = document.getElementById('canvas');
- canvas.addEventListener(
- "webglcontextlost",
- function(e) {
- console.error('WebGL context lost. You will need to reload the page.');
- e.preventDefault();
- },
- false
- );
- return canvas;
- })(),
- onRuntimeInitialized: function() {
- console.log('initialized');
- },
- };
- // Use the export name to instantiate the app
- var app = vtkApp(Module);
- console.log('App created');
- </script>
- </body>
+<head>
+ <meta charset="utf-8" />
+</head>
+
+<body>
+ <canvas id="canvas" style="position: absolute; left: 0; top: 0;"></canvas>
+ <script type="text/javascript" src="Cone.js"></script>
+ <script type='text/javascript'>
+ var Module = {
+ 'canvas': (function () {
+ var canvas = document.getElementById('canvas');
+ canvas.addEventListener(
+ "webglcontextlost",
+ function (e) {
+ console.error('WebGL context lost. You will need to reload the page.');
+ e.preventDefault();
+ },
+ false
+ );
+ return canvas;
+ })(),
+ 'print': (function () {
+ return function (text) {
+ text = Array.prototype.slice.call(arguments).join(' ');
+ console.info(text);
+ };
+ })(),
+ 'printErr': function (text) {
+ text = Array.prototype.slice.call(arguments).join(' ');
+ console.error(text);
+ },
+ 'onRuntimeInitialized': function () {
+ console.log('WASM runtime initialized');
+ // sends a resize event so that the render window fills up browser tab dimensions.
+ setTimeout(() => {
+ window.dispatchEvent(new Event('resize'));
+ }, 0);
+ // focus on the canvas to grab keyboard inputs.
+ canvas.setAttribute('tabindex', '0');
+ // grab focus when the render window region receives mouse clicks.
+ canvas.addEventListener('click', () => canvas.focus());
+ }
+ };
+ </script>
+</body>
+
</html>