Browser Support

Aleph.js requires a modern browser to support native ES module imports and dynamic imports during development:

• Chrome >= 61
• Edge >= 16
• Firefox >= 60
• Safari >= 11
• Opera >= 48

Build Target, Browserslist, and Polyfills

Aleph.js uses esbuild to bundle modules at build time for production. You can set the build.target and build.browsers in aleph.config.ts, a polyfills file will be created automatically that is based on the build target.

export default {
  build: {
    target: 'es2015', // available targets: es2015-es2021, esnext
    browsers: {
      chrome: 70,
      safari: 12
    }
  }
}