testing/web-platform/tests/resize-observer/iframe-same-origin-ref.html


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<!DOCTYPE html>
<title>Resize Observer: reference for the usage of iframes in the same origin</title>
<iframe style="width: 100px; height: 100px;"
  srcdoc="<div style='background: green; height: 50px; width: 50px;'></div">
</iframe>
<br>
Observer callbacks: 3