Function isSpecialResponse

packages/start-server-core/src/createStartHandler.ts:197–199

* Check if a value is a special response (Response or Redirect)

(value: unknown)

 * Check if a value is a special response (Response or Redirect)
 */
function isSpecialResponse(value: unknown): value is Response {
  return value instanceof Response || isRedirect(value)
}

/**
 * Normalize middleware result to context shape