Here you can edit and run the code snippet from our documentation.
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<script src="https://cdn.fastcomments.com/js/embed-v2.min.js"></script>
<div id="fastcomments-widget"></div>
<script>
FastCommentsUI(document.getElementById('fastcomments-widget'), {
"tenantId": "demo",
"disableToolbar": true
});
</script>