message: test(service-worker): remove redundant ternary operator from `MockRequest` initialization
  Since the `init` parameter has a default value of `{}`, it can never be
  `!== undefined`. Thus, it is not necessary to account for that case.
  PR Close
diff: @@ -115,7 +115,7 @@ export class MockRequest extends MockBody implements Request {
  url: string;
  constructor(input: string|Request, init: RequestInit = {}) {
  - super(init !== undefined ? (init.body as (string | null)) || null : null);
  + super((init.body as string | null) ?? null);
  if (typeof input !== 'string') {
  throw 'Not implemented';
  }
  