Cannot export org mode to collapsible HTML

[Kris Brown <ksb@stanford.edu>]

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Hi, I am trying to have basic folding functionality for my org file that
has been exported to HTML. I am using Emacs 26.2 (9.0) and Org 9.1.9 on a
Mac.

This seems to be a built-in feature: JavaScript supported display of web
pages
<https://orgmode.org/manual/JavaScript-support.html#JavaScript-support>. I
downloaded my own copy of org-info.js
<http://web.stanford.edu/~ksb/js/org-info.js>. However, I cannot see any
difference when I use the #+INFOJS_OPT commands or not (org with
<https://web.stanford.edu/~ksb/docs/minimal.org>, org without
<https://web.stanford.edu/~ksb/docs/minimal2.org>, html with
<https://web.stanford.edu/~ksb/docs/minimal_org.html>, html without
<https://web.stanford.edu/~ksb/docs/minimal2_org.html>). I would expect to
see collapsible headers and no TOC displayed when I use those commands.

There *is* a difference in the generated HTML files (an extra CDATA region
with a bunch of statements like: *org_html_manager.set("VIEW", "info");*)
but nothing different visually.

Is this happening because org-info.js is no longer being maintained
<https://www.reddit.com/r/emacs/comments/8xnt5s/what_happened_to_orginfojs/>?
Another solution I saw was Daniel Clemente's tool
<https://lists.gnu.org/archive/html/emacs-orgmode/2010-03/msg00472.html>,
though I am at a total loss for what to specify in the org file to
incorporate his esquemadorg.js script. I appreciate any help that could let
me export large org files to HTML while having the headers be collapsible.

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