小程序 跳转web-view 点击左上角返回需要点击2次才能返回
再html页面引入js即可解决
<script type="text/javascript" src="https://res.wx.qq.com/open/js/jweixin-1.3.0.js"></script>
<script>
window.onunload = function () {
wx.miniProgram.navigateBack({})
}
</script>
转: https://blog.csdn.net/atu1986atu/article/details/99302642