Edge Browser doesn't follow the spec for the File Object. (Missing LastModified Date)

Issue #4155006 • Assigned to Ali A.


Aug 14, 2015
This issue is public.
Reported by 1 person

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Steps to reproduce


Repro Steps:

<!DOCTYPE html >
<html lang="en">
<style type="text/css">
#form {
width: 300px;
padding: 20px;
float: left;

#results {
padding-top: 20px;
clear: both;

<script type="text/javascript">

function changeEventHandler(event) {
var files = event.target.files;

var result = '’;
for (var i = 0; i < files.length; i++) {
var file = files[i];
result += '<span class="result">’+’name '+file.name+’, size '+file.size+’, lastModified '+file.lastModified+’</span><br />’;
document.getElementById(‘results’).innerHTML = result;
<div id="form">
<form action="/nonexistent.pl">
<input id="files" type="file" onchange="changeEventHandler(event);" multiple />
<div id="results">RESULTS<br /></div>

Expected Results:

Return the correct value according to the spec: https://w3c.github.io/FileAPI/#file-attrs

Actual Results:

Dev Channel specific:



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    Comments and activity

    • Microsoft Edge Team

      Changed Assigned To to “Kamen M.”

      Changed Assigned To to “Venkat K.”

      Changed Assigned To from “Venkat K.” to “Ali A.”

    • Any ETA when this issue will be addressed? It’s been nearly 2 years now.

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