When uploading a file, after selecting the file to clear the file path, search, with two methods to solve
<input type="file" id="fileupload" name="file" />
The first:
var obj = document.getElementById('fileupload') ;
obj.select();
document.selection.clear();
The second:
var obj = document.getElementById('fileupload') ;
obj.outerHTML=obj.outerHTML;