I was like why does not it works! Then I remembered I had no script enabled, and then I remembered I don't trust JS and browsers by default, they are like OS in my OS that are way complex to be audited and they have access to way too much sensitive things (files, display, keyboard, network).
"When you’re a NoScript user and haven’t told anyone in 10 minutes" https://pbs.twimg.com/media/CWQbRunUAAAK8f6.png
Weirdly enough, I don't think noScript is the solution (it is heavy, unpractical and I dare not look the code).
I am pretty awry of the evolution of the DOM + JS interaction and the new features brought in browsers that looks like both a cancer and instabilities to come.