It's quite surprising to see how many JS plugins are in operation on a typical consumer site, and satisfying to know they were all blocked unless expressly permitted :)
Note that it is a hack/poc and does not always work, especially the x-frame-detection is iffy so if you try it and just see a blank page try the "enable proxy" checkbox. I use it every now and then on iOS to get around some especially obnoxious JS, but if there were more users I would be more motivated to improve it (hint hint:-)
For example, one particular maroon-headwear-related Linux distro's bug tracker has a particularly egregious blinking bright red banner, asking you to enable JS for the website to "function correctly", even though reading bugs on said tracker works fine without it.