oss-security - Re: Checking existence of firewalled URLs via javascript's script.onload

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Message-ID: <CAGUWgD8-GXOj=hvUzTD0K=GeiQTR-qSstSX0AQ+7GPsv1TWZzQ@mail.gmail.com>
Date: Thu, 20 Apr 2023 10:58:42 +0300
From: Georgi Guninski <gguninski@...il.com>
To: oss-security@...ts.openwall.com
Subject: Re: Checking existence of firewalled URLs via
 javascript's script.onload

On Wed, Apr 19, 2023 at 5:57 PM Peter Philip Pettersson
<philip.pettersson@...il.com> wrote:
>

> There are many ways to make arbitrary HTTP requests through a browser, with
> and without Javascript.
>
Hi, thanks for the info and for the compliment :)

I can't imagine how can you check for open port/URL
without javascript, can you give reference or explanation?
You can make request, but without javascript you can't read the result.

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