[html5] omit credentials flag

Simon Pieters simonp at opera.com
Tue Sep 15 07:06:40 PDT 2015

On Mon, 07 Sep 2015 20:38:01 +0200, Schalk Neethling  
<sneethling at mozilla.com> wrote:

> Greetings All,
> I am studying the HTML, CSS and JS specs and I ran into this interesting
> attribute of the video element that I am trying to understand. The
> attribute in question is the crossorigin attribute.
> So, the value of this is stated to be a CORS settings attribute. Looking  
> at
> the definition for the latter it states that it can be one of two values
> anonymous or use-credentials which in turn sets, or does not set, the  
> omit
> credentials flag.
> What exactly does the omit credentials flag mean and, do I understand
> correctly that you can restrict access to the video element from CORS
> requests but setting the crossorigin attribute to use-credentials?
> Thank you in advance for any and all assistance.

FTR, this topic has been discussed a bit in IRC:


Feel free to ask more questions (here or IRC) if something is still  
unclear. :-)

Simon Pieters
Opera Software

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