tree 367cb27ad5f994c552b28643adf05f246e513db0
parent 88799180fb0ddf2ac00194e0397d6708ba3d5c18
author Marc Kupietz <kupietz@ids-mannheim.de> 1787561031 +0300
committer Marc Kupietz <kupietz@ids-mannheim.de> 1787561031 +0300

disable reveal.js' automatic scroll view on narrow screens

When a phone's presentation width dropped to scrollActivationWidth
(435px) during load, reveal.js 5.2 activated its scroll view, which
flattens the nested section structure. The menu plugin, building its
items asynchronously after that, then only found the empty chapter
wrapper sections and degenerated to italic "Slide 1..N" fallback
entries. Keep the regular swipeable slide view on phones instead,
where menu, notes overlay, and pacing timer work; scroll view remains
available via scrollActivationWidth or view: 'scroll' reveal_options.

Change-Id: I131ac15091082697e3f44057feb421c7026b020c