Request for fullscreen was denied because Element.requestFullscreen() was called from inside a mouse event handler not triggered by left mouse button.
Napšašowanje za połnu wobrazowku jo se wótpokazało, dokulaž Element.requestFullscreen() jo se w běžecem tšojeńskem zapušćaku, kótaryž njejo se zapušćił pśez lěwy tłocašk myški.