Upload the same file

[Rain Lover]

You cannot select and upload the same file except in Firefox, which mistakenly allows you to do so:

<input type="file" id="fileChooser">
document.getElementById('fileChooser').onchange = function () {
    alert('Uploaded!');
};

Here's my approach to resolve the issue. I wonder if there's a neater way to achieve it.

[jscheuer1]

I don't get it:

1. I thought file inputs were off limits to javascript.
   
   
2. Even if this fires onchange, then wouldn't it be a different file?

Server side code used to process the upload would be a better place to weed out duplicates, right?

[Rain Lover]

I thought file inputs were off limits to javascript.

Thanks to HTML5 File API now we can even read a file content with JavaScript: demo.

I don't get it

Sorry if the question isn't very clear!
I mean you cannot re-select the same file twice in a row, i.e. you select and upload foo.txt on your desktop, for example, and then click the file chooser again, file select dialog appears and you try to select the same file again -- the browser simply does nothing and no alert box appears.

[jscheuer1]

OK, obviously I haven't been messing around with this much lately. Perhaps the rules have changed. Anyways, if that works, then it's fine. Does it?

[Rain Lover]

Anyways, if that works, then it's fine. Does it?

Yes, it seems to be working with no problem.
Thanks, anyway!