Modrinth-plus/apps/app/src/api/ads-init.js

if (!window.modrinthClickListener) {
  window.modrinthClickListener = true
  document.addEventListener('click', function (e) {
    let target = e.target
    while (target != null) {
      if (target.matches('a')) {
        e.preventDefault()
        if (target.href) {
          window.top.postMessage({ modrinthOpenUrl: target.href }, 'https://modrinth.com')
        }
        break
      }
      target = target.parentElement
    }
  })
}

window.open = (url, target, features) => {
  window.top.postMessage({ modrinthOpenUrl: url }, 'https://modrinth.com')
}