火狐blob a标签 download

Question

后端返回了excel文件，前端利用a标签下载
const blob = new Blob([data],{type:'application/vnd.ms-excel'})
const a = document.createElement('a')
a.href = URL.createObjectURL(blob)
a.download = 'download'
a.click()
URL.revokeObjectUrl(a.href)
该代码谷歌可以下载，为什么在火狐上没反应？也没有报错，但是无法下载，求解

Answer 1

不要生成a标记，预先写一个a标记，隐藏，然后在这里改它的href和download属性即可，
`const blob = new Blob([data],{type:'application/vnd.ms-excel'})
const a = document.getElementById('a_id')
a.href = URL.createObjectURL(blob)
a.download = 'download'
a.click()
URL.revokeObjectUrl(a.href)`

Answer 2

const blob = new Blob([data],{type:'application/vnd.ms-excel'})
const a = document.createElement('a')
a.addEventListener('click', function(e){
        a.download = 'download'
        a.href = URL.createObjectURL(blob)
    })
var e=document.createEvent('MouseEvents')
e.initEvent('click', false, false)
a.dispatchEvent(e)