1145379 - HTML input type="file" accept attribute not parsing extensions

Status: RESOLVED DUPLICATE of bug 826176

(Core :: DOM: Core & HTML, defect)

Description

[Wayne Gerard]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.89 Safari/537.36

Steps to reproduce:

I created a file input like so:

<input type="file" accept=".jpg" />


Actual results:

I was able to choose files of any type, not just files with a ".jpg" extension


Expected results:

I should have only been able to choose files with ".jpg" extensions.

Comment 1

[Wayne Gerard]

Hi, apologies if this has been brought up before - I couldn't find anything in similar issues. 

MDN indicates I should be able to create a file input with extensions in a ".extension,.extension" format: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#attr-accept

But a quick fiddle shows that not to be true, at least for a number of machines/people I tested with: 
http://jsfiddle.net/861rr1a7/2/

MIME types seem to work fine, but file extensions don't seem to be respected. Interestingly that also seems to be the case in Safari 7.1.3, but not Chrome 41.

We were testing on 36.0.1

Comment 2

[Matthias Versen [:Matti]]

You can see under https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#Browser_compatibility that Gecko doesn't support "accept=[file extension]" at the moment....