589564 - (ietestcenter) HTML5 Media Elements 11/23: 'application/octet-stream' is not a type the UA cannot render.

Status: RESOLVED DUPLICATE of bug 567077

(Core :: Audio/Video, defect)

Description

[Darxus]

User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:2.0b4pre) Gecko/20100817 Minefield/4.0b4pre
Build Identifier: 

Failed test.

Reproducible: Always

Comment 1

[Christopher Blizzard (:blizzard)]

Pretty sure the test is backwards.  The code is:

var vid = document.createElement("video");

if (vid.canPlayType("application/octet-stream") != "")
{
    passTest();
}

I'm pretty sure that test should be == based on the spec:

http://www.w3.org/TR/html5/video.html#dom-navigator-canplaytype

Comment 2

[:Ms2ger (he/him; ⌚ UTC+1/+2)]

Chris, please read a recent spec. See
<http://www.whatwg.org/html/#dom-navigator-canplaytype>
<http://www.whatwg.org/html/#a-type-that-the-user-agent-knows-it-cannot-render>

Comment 3

[Christopher Blizzard (:blizzard)]

This sentence needs more negatives:

"The MIME type "application/octet-stream" with no parameters is never a type that the user agent knows it cannot render. User agents must treat that type as equivalent to the lack of any explicit Content-Type metadata when it is used to label a potential media resource."

IE9 preview responds with "maybe".  After reading this 12 times it sounds like application/octet-stream is special.  So I guess we should do the same here?

Comment 4

[cajbir (:cajbir)]

See this long thread:

<http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2010-July/027169.html>

There is, as far as I know, still discussion going on as to how exactly to treat application/octet-stream. All the browsers currently differ.

Comment 5

[Robert O'Callahan (:roc) (email my personal email if necessary)]

We should not change any of our sniffing/type-handling behaviour until the spec stabilizes more.

Comment 6

[Hector Zhao [:hectorz]]

(In reply to Robert O'Callahan (:roc) (Mozilla Corporation) from comment #5)
> We should not change any of our sniffing/type-handling behaviour until the
> spec stabilizes more.

Since Fx18, video with mime type application/octet-stream can be played, but I cannot find a corresponding bug. The said spec stablized or it happend unintentionally? Thanks!

Comment 7

[cajbir (:cajbir)]

(In reply to Hector Zhao [:hector_zhao] from comment #6)
> 
> Since Fx18, video with mime type application/octet-stream can be played, but
> I cannot find a corresponding bug. The said spec stablized or it happend
> unintentionally? Thanks!

Bug 567077.