I was looking at some code on our site today when I noticed a suspicious error in the JavaScript console. The code was trying to open a websocket on localhost. Does anyone know where this sort of code would be coming from.
This seems to be connected to the Facebook Pixel and is probably an error on their side. Here you can find a thread about more people complaining about the same error: https://developers.facebook.com/community/threads/317050484803752/ , regarding the question why they use a websocket there is no clear answer, but it’s probably used for Realtime Analytics
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