it used to be possible to simply access the other DOM via window. As long as they where in the same context (basically domain) Edit: Yep w2 = window.open('

it used to be possible to simply access the other DOM via window. As long as they where in the same context (basically domain) Edit: Yep w2 = window.open('/'); w2.document.click() Is fine if complying with the sameOrigin policy https://developer.mozilla.org/en-US/docs/Web/API/Window/open https://developer.mozilla.org/en-US/docs/Web/API/Window/open