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diff --git a/testing/web-platform/tests/css/css-fonts/font-display/font-display-feature-policy-02.tentative.html b/testing/web-platform/tests/css/css-fonts/font-display/font-display-feature-policy-02.tentative.html
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+++ b/testing/web-platform/tests/css/css-fonts/font-display/font-display-feature-policy-02.tentative.html
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+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Test for font-display-late-swap feature policy behavior when set to report-only</title>
+<link rel="help" href="https://github.com/w3c/webappsec-feature-policy/blob/master/policies/font-display-late-swap.md">
+<link rel="match" href="font-display-feature-policy-02.tentative-ref.html">
+<style>
+</style>
+<p>None of the font-display values should be changed</p>
+<table id="container">
+ <tr>
+  <th>not-set</th>
+  <th>auto</th>
+  <th>block</th>
+  <th>swap</th>
+  <th>fallback</th>
+  <th>optional</th>
+ </tr>
+</table>
+<script>
+const fontDisplayValues = ['', 'auto', 'block', 'swap', 'fallback', 'optional'];
+const table = document.getElementById('container');
+
+function makeFontFaceDeclaration(family, display) {
+    url = '/fonts/Ahem.ttf?pipe=trickle(d1)'; // Before the swap period is over
+    return '@font-face { font-family: ' + family + '; src: url("' + url + '"); font-display: ' + display + '; }';
+}
+
+window.onload = () => {
+    let tr = document.createElement('tr');
+    for (let display of fontDisplayValues) {
+        const family = display + '-face';
+        const rule = makeFontFaceDeclaration(family, display);
+        document.styleSheets[0].insertRule(rule, 0);
+        let td = document.createElement('td');
+        td.textContent = 'a';
+        td.style.fontFamily = family + ', Arial';
+        tr.appendChild(td);
+    }
+    table.appendChild(tr);
+    const timeoutMilliSec = 1500; // After the font is loaded
+    setTimeout(() => {
+        document.documentElement.classList.remove("reftest-wait");
+    }, timeoutMilliSec);
+}
+</script>
+</html>