> Ok, fine, I'll link you directly to the ArrayList docs, for which I had to "view frame source" and grab the URL:

You could've just right click on the "frames" link, and copy the URL: https://docs.oracle.com/javase/8/docs/api/index.html?java/ut... . They use javascript to navigate based on the search params in the URL. It's not great, it should update the URL as you navigate, maybe you can send them a PR for that. (And to change state of the boxes on the left too.)

Also browser history handling is really messy and hard to get right, regardless of frames.

> And if I look in my history, there is no entry that corresponds to what I actually saw.

? If you write a javascript +1 button that updates a counter, there won't be a corresponding entry in your history for the actual states of your counter. I don't see how that is a fundamental problem with javascript(?).