dirReader. Readentries compatibility issues. Exception error domexception

Dragging and uploading folders and directories .

Find out  var dirReader = item.createReader()

dirReader.readEntries((entries) => {

},function (e) {
       console.log(e);//
    })

}

 

dirReader.readEntries Only Firefox is normal . Other browsers will be abnormal .

 

  Resolve compatibility issues ：