Function previewBaseUrl

packages/cli/src/commands/preview.ts:289–291

(port: number, host = "127.0.0.1")

// `host` is the loopback the server actually bound (Vite binds `[::1]`, embedded
// binds `127.0.0.1`); default to IPv4 for the embedded/legacy callers.
function previewBaseUrl(port: number, host = "127.0.0.1"): string {
  return `http://${host}:${port}`;
}

function absolutePreviewUrl(port: number, path: string, host = "127.0.0.1"): string {
  if (/^https?:\/\//.test(path)) return path;