[176113] in North American Network Operators' Group
Re: Mozilla performing pdf.js DNS queries?
daemon@ATHENA.MIT.EDU (Valdis.Kletnieks@vt.edu)
Thu Nov 13 12:01:16 2014
X-Original-To: nanog@nanog.org
To: Seth Mos <seth.mos@dds.nl>
In-Reply-To: Your message of "Thu, 13 Nov 2014 14:26:28 +0100."
<5464B184.7050801@dds.nl>
From: Valdis.Kletnieks@vt.edu
Date: Thu, 13 Nov 2014 12:00:56 -0500
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
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On Thu, 13 Nov 2014 14:26:28 +0100, Seth Mos said:
> Whilst rummaging through some DNS (dnsmasq) logs I've noticed quite a
> decent amount of queries for pdf.js from what appear to be mozilla browsers.
>
> Seems rather odd that it is performing DNS queries for a internal PDF
> viewer.
Totally wild shot in the dark - recent Mozilla have an onboard PDF viewer
written in javascript called pdf.js
http://en.wikipedia.org/wiki/PDF.js
It's callable from within other javascript via chrome:// or resource://
references, but sometimes people don't get it right:
http://superuser.com/questions/614002/how-to-open-pdf-js-in-firefox-via-chrome-url
My guess is that somebody else didn't quite get it right, and is trying to
get to the hostname when they intended to get to the javascript.....
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