Since you have access to the URL fragment in JS, you should be able to do any of that manually even if there isn't a special API to use. The easiest thing to do

Since you have access to the URL fragment in JS, you should be able to do any of that manually even if there isn't a special API to use. The easiest thing to do would be to check for this specially-crafted fragment in the URL and store it. I think though that this is a pretty niche feature though, so it's unlikely to be a big source of data. In my experience, the median sophistication web user has discovered that the browser's Back button exists and can Open in New Tab. Bookmarks, zoom, ctrl-F are all too confusing. A feature that requires right-clicking may as well be black magic to most people.