W3C home > Mailing lists > Public > public-webappsec@w3.org > May 2013

Re: [filter-effects][css-masking] Move security model for resources to CSP

From: Dirk Schulze <dschulze@adobe.com>
Date: Wed, 29 May 2013 16:06:04 -0700
To: "robert@ocallahan.org" <robert@ocallahan.org>
CC: Anne van Kesteren <annevk@annevk.nl>, Bjoern Hoehrmann <derhoermi@gmx.net>, "public-fx@w3.org" <public-fx@w3.org>, "public-webappsec@w3.org" <public-webappsec@w3.org>, Daniel Holbert <dholbert@mozilla.com>, Philip Rogers <pdr@google.com>
Message-ID: <974F969A-2ADA-44A4-A139-55F437F6470F@adobe.com>

On May 29, 2013, at 3:26 PM, Robert O'Callahan <robert@ocallahan.org> wrote:

> On Thu, May 30, 2013 at 6:48 AM, Dirk Schulze <dschulze@adobe.com> wrote:
> Maybe CSS and SVG should specify exactly that: No load of any external resources of an SVG file loaded as image. Exclusions of the restrictions can be specified later after more investigations.
> If we do that, we prevent unification of "SVG image loads" and "SVG external resource document loads". Which is a desirable thing, to enable unifying "-webkit-mask" and SVG "mask" without hacks that make the load type dependent on a guess of whether you're referring to an SVG mask or an SVG image.
> My latest thought on this is that maybe we should just change SVG external resource document loads to work like SVG image loads --- those external documents get no access to external resources of their own. On the face of it, this is a pretty bad compatibility break, but maybe it's OK since Webkit/Blink don't support SVG external resource document loads at all!

If we go the way of unifying, then a generalization of all IRIs in SVG might make sense too, including references of <use> element, references of all kind of paint servers, clip-paths, filters and masks.


> Rob
> -- 
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Received on Wednesday, 29 May 2013 23:06:39 UTC

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