_modifyFetchToIncludeCredentials(body) {
    if (!body) {
      return
    }
    body = body.replace(`fetch(url).`, `fetch(url, {credentials: 'include'}).`)

    // Fix for headless index pages that use weird client-side JS to modify the devtoolsFrontendUrl to something not working for us
    // https://github.com/berstend/puppeteer-extra/issues/566
    body = body.replace(
      'link.href = `https://chrome-devtools-frontend.appspot.com',
      'link.href = item.devtoolsFrontendUrl; // '
    )

    debug('fetch:after', body)
    return body
  }
`fetch` used by the index page doesn't include credentials by default.

          LOVELY
          THANKS
            <3

@ignore