org-html-use-infojs

org-html-use-infojs is a variable defined in `ox-html.el'.
Its value is

when-configured

Documentation:
Non-nil when Sebastian Rose's Java Script org-info.js should be active.
This option can be nil or t to never or always use the script.
It can also be the symbol `when-configured', meaning that the
script will be linked into the export file if and only if there
is a "#+INFOJS_OPT:" line in the buffer. See also the variable
`org-html-infojs-options'.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 24.4 of Emacs.