javascript-url-compat-mode.html | Explore in Territory

<script>
if (window.testRunner) {
    testRunner.dumpAsText();
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}
</script>
<iframe src="javascript:'<HTML><BODY><script>document.write(document.compatMode)</script></BODY></HTML>'"></iframe>

chromium/third_party/blink/web_tests/fast/parser/javascript-url-compat-mode.html