W3C home > Mailing lists > Public > public-webappsec@w3.org > July 2015

Re: CSP: Blob URLs in new windows.

From: Eduardo' Vela\ <evn@google.com>
Date: Mon, 20 Jul 2015 11:57:34 +0200
Message-ID: <CAFswPa8c12bC8zW-EFMpQ-7Wi2M8H8TrMUpCWORDwOtZfW=X0Q@mail.gmail.com>
To: Mike West <mkwst@google.com>
Cc: "public-webappsec@w3.org" <public-webappsec@w3.org>
doesn't location='blob:foo' also work?

On Mon, Jul 20, 2015 at 6:40 AM, Mike West <mkwst@google.com> wrote:

> https://code.google.com/p/chromium/issues/detail?id=511824 notes that
> `blob:` URLs can be popped up into new windows, bypassing the inheritance
> structure that CSP sets up for IFrames. Though this seems consistent with
> the spec and with other browser's behavior, it's probably something we
> ought to change in CSP3.
>
> Any objections to pushing CSP from an opener window to an openee in the
> same cases where we'd push CSP from a parent frame to a child frame (e.g.
> when the URL is a globally unique identifier)?
>
> --
> Mike West <mkwst@google.com>, @mikewest
>
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Received on Monday, 20 July 2015 09:58:22 UTC

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