rst-child {
        font-weight: bold;
    }

    #headers {
        display: flex;
        flex-direction: column;
        align-items: start;
    }
&lt;/style&gt;

&lt;script&gt;
    function callDemoRoute() {
        fetch(&#39;http://cors.oto.tools:9999&#39;, {
            method: &#39;POST&#39;,
            credentials: &#39;include&#39;,
            headers: {
                &#39;Content-Type&#39;: &#39;application/json&#39;
            },
            body: JSON.stringify({ foo: &quot;bar&quot; })
  