getUrlForPage(page) {
    ow(page, ow.object.hasKeys('_target._targetInfo.targetId'))
    const pageId = page._target._targetInfo.targetId
    return super.getUrlForPageId(pageId)
  }
Get the devtools frontend deep link for a specific page.

@param  {Puppeteer.Page} page
@return {string} - url

@example
const page = await browser.newPage()
const tunnel = await devtools.createTunnel(browser)
console.log(tunnel.getUrlForPage(page))
// => https://devtools-tunnel-bmkjg26zmr.localtunnel.me/devtools/inspector.html?ws(...)