Routing error: yes, of course.

[AS]

It's are a couple of days that I'm seeing a message like the above, "nearly" on every web page I load, the text under is:

No route matches "/plugins/like.php" with {:method=>:get}

To say the thruth, I know why, this started two days ago, when I noticed some network connection to ww.facebook.com
and plusone.google.com. I'm not a facebook subscriber, nor a G+ subscriber, that connections sounded a bit strange to me.

Therefore I blocked the connection using a good old method, adding two entries in my /etc/hosts:

127.0.0.1 www.facebook.com
127.0.0.1 plusone.google.com

As soon as I added the above lines, the routing error appear out on many of the visited web pages, (... a lot of website ...)

I know also, that each user can be identified from a web site, by some form of "fingerprint", so that it could be assumed that i.e G+ can recognize my "system fingerprint" as a unique visitor.

By allowing my system to run the piece of code above, "they" can know exactly which pages I visited, and group them together by means of "system fingerprint".

As long as I can have a gmail account (I do have one), they can effectively join together all the above data to my real identity.

Not so good, IMHO. 

Thanks to /etc/hosts and to IP loopback device. 

AS

[Just18]

Where does the error report appear?  Is it different in different browsers?

Are there any particular sites/pages that generate this error?

[AS]

Where does the error report appear?  

In the same place where there are the buttons "Like" and/or "f Sign up".

Is it different in different browsers?

FF & Cromium report "Routing error", Opera report a "blank rectangle".

Are there any particular sites/pages that generate this error?

not sure about the question, probably every page containing one of the above two buttons, like the following two:

www.jackdaniels.com  http://www.euronews.net ....

[Just18]

Thanks