1384824-1.html - mozsearch

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<!DOCTYPE html>

<html class="reftest-wait">

<style>

  textarea {

    min-height: 100px;

</style>

<div>

  <iframe src="about:blank"></iframe>

</div>

<script>

  let div = document.querySelector('div');

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

  iframe.onload = function() {

    let doc = iframe.contentDocument;

    let e = doc.createElement('textarea');

    doc.body.appendChild(e);

    setTimeout(function() {

      getComputedStyle(e).minHeight;

      div.style.display = 'none';

      setTimeout(function() {

        getComputedStyle(e).minHeight;

        document.documentElement.className = "";

      }, 0);

    }, 0);

};

</script>