Function attachFetchStreamObserver

inject.js:478–483

(stream, options)

  }

  function attachFetchStreamObserver(stream, options) {
    installReadableStreamObserverHooks();
    const observer = createFetchStreamObserver(options);
    registerFetchStreamObserver(stream, observer);
    return observer;
  }

  function wrapFetchResponseClone(response, observer) {
    if (!response || typeof response.clone !== 'function' || !observer) return;