chromium/third_party/blink/web_tests/fast/css/content-disallowed-url-crash.html

<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<img id="target">
<script>
test(() => {
  target.style.content = 'url("chrome://")';
  getComputedStyle(target).content;
}, 'Specifying a disallowed url protocol for <img> content property should not crash when serialising.');
</script>