bug1315146-main.html

Enable keyboard shortcuts

<!DOCTYPE HTML>

<iframe src="http://example.org/tests/dom/html/test/bug1315146-iframe.html"></iframe>

<input value="test">

<script>

document.domain = "example.org";

onload = function() {

  let iframe = document.querySelector("iframe");

  let input = document.querySelector("input");

  input.selectionStart = input.selectionEnd = 2;

  document.body.style.overflow = "scroll";

  iframe.contentDocument.body.offsetWidth;

  opener.postMessage({start: input.selectionStart,

                      end: input.selectionEnd}, "*");

</script>