client-hints-accept-meta-preloader.html

<!DOCTYPE html>
<script>
    if (window.testRunner)
        testRunner.dumpAsText()

    function checkIfPassed(value, expectation)
    {
        if (value == expectation)
            document.getElementById('result').innerHTML = 'PASSED';
        else
            failed();
    }

    function failed()
    {
        document.getElementById('result').innerHTML = 'FAILED';
    }
</script>
<script src="../resources/slow-script.pl?sleep=300"></script>
<meta http-equiv="Accept-CH" content="DPR, Viewport-Width">
This test checks that a meta based Accept-CH is properly parsed by the HTMLPreloadScanner.
<div id=result></div>
<img src='resources/image-checks-for-viewport-width.php'
     onload="checkIfPassed(this.clientWidth, 128);"
     onerror="failed();">

chromium/third_party/blink/web_tests/http/tests/misc/client-hints-accept-meta-preloader.html