[zimpenfish]

> as they can plug in one of the existing engines

As someone who attempted this for Lynx back in the [~late 90s~] early 00s with the Mozilla JS engine of the time, no, they can't.

Lynx has no DOM. It parses and renders the HTML to a fixed textual pane without any intermediate format - even `document.write()` is nigh-on impossible to implement because it required keeping a copy of the HTML around, jiggering it with the output, reparsing, and going through the layout again. And that only covers the most trivial uses of `document.write()`.

To add Javascript to Lynx would require rewriting the entire internals of Lynx - not going to happen.

[Edited to correct the time period]