Re: [whatwg/fetch] "With Credentials" flag possibly inconsistent with web architecture (#517) from Anne van Kesteren on 2018-10-24 (public-webapps-github@w3.org from October 2018)

From: Anne van Kesteren <notifications@github.com>
Date: Wed, 24 Oct 2018 04:37:07 -0700
To: whatwg/fetch <fetch@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <whatwg/fetch/issues/517/432620892@github.com>

Basically, we shouldn't give any more information on fetches that include credentials to attackers. There have been a number of novel attacks demonstrated in this area and I don't think this is a good enough reason to expose an additional bit.

It also violates the design contract of CORS whereby we wouldn't reveal information about servers in case of a non-match, but this would reveal information.

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Received on Wednesday, 24 October 2018 11:37:28 UTC