1. package.json

npm i -D core-js regenerator-runtime @vitejs/plugin-legacy

2. vite.config.ts

import legacy from "@vitejs/plugin-legacy";

plugins: [
legacy({
targets: ["defaults", "not IE 11", "Chrome >= 53", "Android >= 6"],
additionalLegacyPolyfills: [
"core-js/stable",
"regenerator-runtime/runtime",
],
}),
]

3. main.ts

import "core-js/stable";
import "regenerator-runtime/runtime";