Loading rexUI plugin error

Phaser 3
1

I am adding the rexUI plugin to my game on phaser 3 using “scene.load.plugin(‘rexuiplugin’, 'rexuiplugin.min.js ')”. If the third parameter is set to false, the download will be error-free, but the plugin will not work either. If I set the parameter to true, I will get the error “Cannot read properties of undefined (reading ‘game’)”. So, what am I doing wrong and how to extend different ui classes loaded from this min plugin version?

2

You can see any of demo on codepen, like this one.

In preload method, line 12-18

    preload() { 
        this.load.scenePlugin({
            key: 'rexuiplugin',
            url: 'https://raw.githubusercontent.com/rexrainbow/phaser3-rex-notes/master/dist/rexuiplugin.min.js',
            sceneKey: 'rexUI'
        });      
    }
3

won’t it load again on each scene, delaying the launch time? And in this case, how to perform inheritance? As example, Class MyButton extends plugin.buttons