windows：不会
window.close();不起作用，windows下也报Scripts may close only the windows that were opened by it.
微信：WeixinJSBridge.call('closeWindow');
或者引入<script src="https://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>调用wx.closeWindow();
只适用微信，其它入口比QQ里进入都关闭不了，报Uncaught ReferenceError: WeixinJSBridge is not defined