Your ROOT_URL in app.ini is http://git.osmesh.ru/ but you are visiting https://git.osmesh.ru/MOS/OpenBoard/src/commit/3f73f25f6f3c5e483c4f97453d27ae9043e590c3/resources/www You should set ROOT_URL correctly, otherwise the web may not work correctly.

новые иконки в OpenBoard

Claudio Valerio 907c08482e first try on linux after changing name		12 years ago
..
OpenBoard-web-player.html	first try on linux after changing name	12 years ago