{{ '{{flutter_js}}' }} {{ '{{flutter_build_config}}' }} var loading = document.querySelector('#loading'); _flutter.loader.load({ serviceWorkerSettings: { serviceWorkerVersion: {{ '{{flutter_service_worker_version}}' }}, }, onEntrypointLoaded: async function (engineInitializer) { loading.classList.add('main_done'); const appRunner = await engineInitializer.initializeEngine({useColorEmoji: useColorEmoji}); loading.classList.add('init_done'); await appRunner.runApp(); window.setTimeout(function () { loading.remove(); }, 200); } });