Function prepareResponseHeaders

lib/playback_interceptor.js:212–252

(body, responseHeaders)

  }

  async function prepareResponseHeaders(body, responseHeaders) {
    const defaultHeaders = [...interceptor.scope._defaultReplyHeaders]
    const rawHeaders = []

    // Include a JSON content type when JSON.stringify is called on the body.
    // This is a convenience added by Nock that has no analog in Node. It's added to the
    // defaults, so it will be ignored if the caller explicitly provided the header already.
    const isJSON =
      body !== undefined &&
      typeof body !== 'string' &&
      !Buffer.isBuffer(body) &&
      !common.isStream(body)

    if (isJSON) {
      defaultHeaders.push('Content-Type', 'application/json')
    }
    common.forEachHeader(
      [...interceptor.rawHeaders, ...responseHeaders],
      (value, fieldName) => {
        rawHeaders.push([fieldName, value])
      },
    )

    rawHeaders.push(
      ...selectDefaultHeaders(
        [...interceptor.rawHeaders, ...responseHeaders],
        defaultHeaders,
      ),
    )

    for (let i = 0; i < rawHeaders.length; i++) {
      const [, value] = rawHeaders[i]

      // Evaluate functional headers.
      if (typeof value === 'function') {
        rawHeaders[i][1] = await value(decompressedRequest)
      }
    }

    return new Headers(rawHeaders)
  }

  async function continueWithResponseBody(
    rawBody,