[cocos2d-html5]exitFullScreen

# exitFullScreen 함수 오류 

 exitFullScreen: function () 

{

        if (!this._supportsFullScreen || !this.fullScreen()) return;

        return (this._browserPrefix === '') ? document.body["cancelFullScreen"]() : document.body[this._browserPrefix + 'CancelFullScreen']();<-- 에러 발생

    },

- 수정 

 return (this._browserPrefix === '') ? document["cancelFullScreen"]() : document[this._browserPrefix + 'CancelFullScreen']();