loadedOnRequest() not loading assets on request

FilamentAsset::register([
    Js::make('local-player-script', __DIR__ . '/../../resources/js/local-player.js')->loadedOnRequest(),
    Js::make('radio-player-script', __DIR__ . '/../../resources/js/radio-player.js')->loadedOnRequest(),
    Css::make('player-stylesheet', __DIR__ . '/../../resources/css/player.css')->loadedOnRequest(),
]);

<x-filament-widgets::widget>
    <div
        x-data="radioPlayerCode"
        x-load-js="[@js(\Filament\Support\Facades\FilamentAsset::getScriptSrc('radio-player-script'))]"
        x-load-css="[@js(\Filament\Support\Facades\FilamentAsset::getStyleHref('player-stylesheet'))]"
    >
       <!-- ... -->
    </div>
</x-filament-widgets::widget>