Method clone

lib/web/fetch/request.js:780–813

()

  // Returns a clone of request.
  clone () {
    webidl.brandCheck(this, Request)

    // 1. If this is unusable, then throw a TypeError.
    if (bodyUnusable(this.#state)) {
      throw new TypeError('unusable')
    }

    // 2. Let clonedRequest be the result of cloning this’s request.
    const clonedRequest = cloneRequest(this.#state)

    // 3. Let clonedRequestObject be the result of creating a Request object,
    // given clonedRequest, this’s headers’s guard, and this’s relevant Realm.
    // 4. Make clonedRequestObject’s signal follow this’s signal.
    const ac = new AbortController()
    if (this.signal.aborted) {
      ac.abort(this.signal.reason)
    } else {
      let list = dependentControllerMap.get(this.signal)
      if (list === undefined) {
        list = new Set()
        dependentControllerMap.set(this.signal, list)
      }
      const acRef = new WeakRef(ac)
      list.add(acRef)
      util.addAbortListener(
        ac.signal,
        buildAbort(acRef)
      )
    }

    // 4. Return clonedRequestObject.
    return fromInnerRequest(clonedRequest, this.#dispatcher, ac.signal, getHeadersGuard(this.#headers))
  }

  [nodeUtil.inspect.custom] (depth, options) {
    if (options.depth === null) {