打开页面console时候报错

cc.Class({
extends: cc.Component,

properties: {
},


onLoad () {
    var a = new cc.Vec2(100,100);
    console.log(a);
},

start () {
},

// update (dt) {},

});
这是源代码,下面是报错

CCSys.js:956 The AudioContext was not allowed to start. It must be resume (or created) after a user gesture on the page. https://goo.gl/7K7WLu