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Re: [PATCH] Add resolve-relative-reference in (web uri), as in RFC 3986


From: Maxime Devos
Subject: Re: [PATCH] Add resolve-relative-reference in (web uri), as in RFC 3986 5.2.
Date: Wed, 4 Oct 2023 00:30:05 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0


     The best prevention is not allowing redirects at all or only
     allowing redirections that keep the hostname intact -- while an
     option for much software, it isn't an option for web browsers.

Partially scratch that -- restricting to ‘keeping hostname intact’ is insufficient, because there could be a DNS record that points 'website via http' to 127.0.0.1, and hence a redirect from https://website --> http://website can change IP addresses from global Internet to local computer.

Best regards,
Maxime Devos.

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