ive = getComputedStyle(shadowDiv).backgroundImage;

  sheet.replaceSync(`* { background-image: url("${fullPath}"); }`);
  const styleFromFull = getComputedStyle(shadowDiv).backgroundImage;

  assert_equals(styleFromRelative, styleFromFull);
}, "Constructing a sheet with the default base URL uses the constructor document's base URL for CSS rules");

</script>
