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Run a game.state example in in the sandbox, not possible?

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I'm trying to run one of the Phaser examples in a sandbox to reproduce an audio question by running an altered version of this audio example in the sandbox.

I've altered the code (see link to sandbox below) but when I click the Play tab, the console shows this error message.


Uncaught DOMException: Failed to execute 'postMessage' on 'Window': TypeError: Cannot set property 'prototype' of undefined could not be cloned.

So it seems the sandbox cannot run Phaser games that make use of the StateManager.
Should the sandbox be used in another way for the game.State to work?
Am I doing something wrong here?

See saved sandbox ->


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Hi @BdR,

That DOMException is resolved with this (mygame.MyGameState was undefined):

mygame.MyGameState = function(game){};

mygame.MyGameState.prototype = {
    preload: function() {

............... more code ...............

Phase Sandbox can use the StateManager. Here a simple example:

Each state must contain at least a one of the required functions: preload, create, update or render (check your "mygame.MyState ")

To change the game size use the size selector in the "Play" tab. Declaring a new adds other canvas, and seems game.destroy() can't be used.


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