Request for fullscreen was denied because Element.requestFullscreen() was called from inside a mouse event handler not triggered by left mouse button.
Naprašowanje za połnu wobrazowku je so wotpokazało, dokelž Element.requestFullscreen() je so znutřka běžaceho podawkoweho zahibaka, kotryž njeje so přez lěwe tłóčatko myški zahibał.