Re: [whatwg/fetch] Recommend that servers follow the steps of CORS preflight for easier troubleshooting (Issue #1588) from Anne van Kesteren on 2023-09-20 (public-webapps-github@w3.org from September 2023)

From: Anne van Kesteren <notifications@github.com>
Date: Wed, 20 Sep 2023 01:33:27 -0700
To: whatwg/fetch <fetch@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <whatwg/fetch/issues/1588/1727234863@github.com>

The tradeoff here is that you end up giving more information to potential attackers. What is best in any given situation is not something we can make a universal statement about I think.

With regards to the timing channel, that is mainly for non-preflight responses, though perhaps attackers can also learn something from the amount of time it takes to grant or deny access to a particular request.

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Received on Wednesday, 20 September 2023 08:33:32 UTC