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Re: Firefox same-origin policy for fonts


From: Daniel Veditz <dveditz () cruzio com>
Date: Mon, 13 Sep 2010 00:42:52 -0700

On 9/12/2010 4:43 PM, paul.szabo () sydney edu au wrote:
  Firefox's interpretation of the same-origin policy is more strict than
    most other browsers, and it affects how fonts are loaded with the
    @font-face CSS directive. ...
  There is a solution to this, however, if you manage the server ...
    create a file called .htaccess that contains the following lines: ...
    Header set Access-Control-Allow-Origin "*"

That would suggest that this same-origin policy can be defeated by
settings on the "evil" server: the policy is not enforced, useless.
Did I misunderstand something?

The same-origin rules on WOFF are about IP rights rather than security.
Unlike images, a page can only use a WOFF font with the cooperation of the
font-hosting site. If it happens to be a licensed font and is being misused
then the foundry knows who to talk to. A site using a font they don't have
a license for will have to host it themselves, they can't hide behind the
link being just text and claim it was the browser that did the infringing.

https://developer.mozilla.org/en/About_WOFF

-Dan Veditz

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