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Re: webappsec-ISSUE-45 ('top-only'): Is 'top-only' worth preserving? [UI Security]

From: Tobias Gondrom <tobias.gondrom@gondrom.org>
Date: Tue, 05 Mar 2013 17:05:19 +0800
Message-ID: <5135B54F.5010708@gondrom.org>
To: public-webappsec@w3.org
Hi all,
actually I can see no benefit to keep the "top-only" keyword.
IMHO exact compatibility is not required and in fact this deprecated
option can lead to insecure implementations.

So IMHO, I would suggest to rather not have "top-only".

Best regards, Tobias

On 05/03/13 13:41, Web Application Security Working Group Issue Tracker
> webappsec-ISSUE-45 ('top-only'): Is 'top-only' worth preserving? [UI Security]
> http://www.w3.org/2011/webappsec/track/issues/45
> Raised by: Brad Hill
> On product: UI Security
> The current UI Security draft specifies a 'top-only' keyword source for the frame-options directive to preserve exact compatibility with X-Frame-Options.
> This is actually a dangerous and mis-understood behavior:
> https://bugzilla.mozilla.org/show_bug.cgi?id=725490
> Is there a good reason to keep the 'top-only' behavior?
Received on Tuesday, 5 March 2013 09:05:50 UTC

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