Javascript canvas - button works on android but not on ios

Question

Hi I have a button in menu that works on android, but isn't clickable on ios. Can someone point me out what is missing or what the solution could be to this ? The button is in <canvas> element

Pokeball.MainMenu = function(game) {};
Pokeball.MainMenu.prototype = {
    create: function() {
        this.add.sprite(0, 0, 'screen-mainmenu');
        this.gameTitle = this.add.sprite(Pokeball._WIDTH*0.5, 40, 'title');
        this.gameTitle.anchor.set(0.5,0);
        this.startButton = this.add.button(Pokeball._WIDTH*0.5, 200, 'button-start', this.startGame, this, 2, 0, 1);
        this.startButton.anchor.set(0.5,0);
        this.startButton.input.useHandCursor = true;
    },
    startGame: function() {
        this.game.state.start('Game');
    }
};

Answer 1

等待大神答复