Re-uploading a file with AJAX after it was changed causes net::ERR_UPLOAD_FILE_CHANGED in Chrome

A quick workaround would be to include a complete parameter to AJAX call (or any equivalent of a finally call that always gets invoked) and add code that resets the form. I’ve noticed that attaching the file again solves it. While I appreciate it’s not a real solution to the problem, it does provide handling or rather avoidance of that error.

This way, if the user for any reason needs to re-upload the file, they’ll have to choose the file again.

Example below:

$.ajax({
    url: this.action,
    type: this.method,
    data: this.data,
    success: function (response) { 
        // success scenario
    },
    error: function (result) {
        // error scenario
    },
    complete: function (data) {
        $('#uploadForm')[0].reset(); // this will reset the form fields
    }
});