Reuse Web Audio Context

class Example extends Phaser.Scene
{
    audioContext;

    preload ()
    {
        this.load.setBaseURL('https://cdn.phaserfiles.com/v410');
        this.load.spritesheet('explosion', 'assets/atlas/trimsheet/explosion.png', { frameWidth: 64, frameHeight: 64 });
        this.load.spritesheet('bomb', 'assets/sprites/xenon2_bomb.png', { frameWidth: 8, frameHeight: 16 });
        this.load.audio('explosion', [ 'assets/audio/SoundEffects/explosion.mp3' ]);
    }

    create ()
    {
        this.anims.create({
            key: 'rotate',
            frames: this.anims.generateFrameNumbers('bomb', { start: 0, end: 3, first: 3 }),
            frameRate: 20,
            repeat: -1
        });

        this.anims.create({
            key: 'explode',
            frames: this.anims.generateFrameNumbers('explosion', { start: 0, end: 23, first: 23 }),
            frameRate: 20
        });

        const bomb = this.add.sprite(400, 300, 'bomb');
        bomb.setScale(6, -6);
        bomb.anims.play('rotate');

        this.input.once('pointerdown', function ()
        {

            bomb.visible = false;

            const boom = this.add.sprite(400, 300, 'explosion');
            boom.setScale(6);
            boom.anims.play('explode');

            const explosion = this.sound.add('explosion', {
                volume: 0.5
            });

            explosion.on('complete', function (sound)
            {

                setTimeout(() =>
                {

                    this.sys.game.destroy(true);

                    document.addEventListener('mousedown', function newGame ()
                    {

                        game = new Phaser.Game(config);

                        document.removeEventListener('mousedown', newGame);

                    });

                });

            }, this);

            explosion.play();

        }, this);
    }
}

try
{
    this.audioContext = new (window.AudioContext || window.webkitAudioContext)();
}
catch (e)
{
    console.error(e);
}

const config = {
    scale: { mode: Phaser.Scale.FIT },
    type: Phaser.AUTO,
    width: 800,
    height: 600,
    parent: 'game-container',
    scene: Example,
    pixelArt: true,
    audio: {
        context: this.audioContext
    }
};

let game = new Phaser.Game(config);