Geekspeak I don't understand

Brian Johnson brian at
Thu May 14 07:36:54 BST 2015

I also use Facebook multiple times every day and have never seen that message. I use a Chromium-based browser (Vivaldi or Opera) run on Vista32.

Perhaps Facebook were doing something to their certs at just the time you happened along?

Does Google (or whoever) show that anyone else noticed?


-----Original Message-----
From: "Roland Perry" <lists at>
Sent: ‎13/‎05/‎2015 22:27
To: "ukcrypto at" <ukcrypto at>
Subject: Re: Geekspeak I don't understand

In article <20150513123103.GA25424 at>, Jon Ribbens 
<jon+ukcrypto at> writes
>> or what's amiss in 'my setup'?
>> "An error occurred during a connection to The server uses
>> key pinning (HPKP) but no trusted certificate chain could be constructed
>> that matches the pinset. Key pinning violations cannot be overridden. (Error
>> code: mozilla_pkix_error_key_pinning_failure)
>>     The page you are trying to view cannot be shown because the
>>     authenticity of the received data could not be verified.
>>     Please contact the website owners to inform them of this problem."
>Is it a corporate computer or similar that might have a root
>certificate installed by the IT department?

No, it's my five year old laptop where only I am the administrator.

Not sure if it matters but about three months ago I wiped the 
Win7-upgraded-to-Win8 installation and did in effect a "factory reset" 
back to Vista.

I use Facebook multiple time most days (for years), and have never 
before seen any error message like this.
Roland Perry

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