Org-to-HTML and fill-column-indicator

Lately I was having an issue in the org to html conversion where the newline characters got appended with funky unicode characters.

Full detail is in this reddit post I started.

The fix was to add the following code after the line (funcall lang-mode) in the org-html-fontify-code defun in ox-html.el.

(when (require 'fill-column-indicator nil 'noerror)
    (fci-mode -1))

Make sure you delete ox-html.elc else your patched ox-html.el won’t be effective.