docs/javascripts/airgap-links.js

export default function airgapLinks () {
  // When in an airgapped environment,
  // show a tooltip on external links
  const { airgap } = JSON.parse(document.getElementById('expose').text)
  if (!airgap) return

  const externaLinks = Array.from(
    document.querySelectorAll('a[href^="http"], a[href^="//"]')
  )
  externaLinks.forEach(link => {
    link.classList.add('tooltipped')
    link.setAttribute('aria-label', 'This link may not work in this environment.')
    link.setAttribute('rel', 'noopener')
  })
}