hugo-theme-stack/layouts/partials/comments/provider/disqusjs.html

<div class="disqus-container">
    {{- $pc := .Site.Config.Privacy.Disqus -}}
    {{- $disqusjs := .Site.Params.Comments.Disqusjs -}}
    {{- if and (not $pc.Disable) (and $disqusjs.Shortname $disqusjs.ApiKey) -}}
    <div id="disqus_thread"></div>
    <script type="application/javascript">
        var disqusjs;
        function loadDisqusJS() {
            disqusjs = new DisqusJS({
                shortname: {{ $disqusjs.Shortname }},
                siteName: {{ .Site.Title }},
                apikey: {{ $disqusjs.ApiKey }},
                {{ with $disqusjs.ApiUrl }}api: {{ . }},{{ end }}
                {{ with $disqusjs.Admin }}admin: {{ . }},{{ end }}
                {{ with $disqusjs.AdminLabel }}adminLabel: {{ . }}{{ end }}
            });
        }

        function lazyLoadDisqusJS() {
            if (["localhost", "127.0.0.1"].indexOf(window.location.hostname) != -1) {
                document.getElementById('disqus_thread').innerHTML = 'Disqus comments not available by default when the website is previewed locally.';
                return;
            }

            var d = document.createElement('script');
            d.src = 'https://cdn.jsdelivr.net/npm/disqusjs@1.3/dist/disqus.js';
            d.async = false;
            document.body.appendChild(d);
            d.onload = () => {
                loadDisqusJS();
                window.addEventListener('onColorSchemeChange', (e) => {
                    if (disqusjs) {
                        loadDisqusJS();
                    }
                })
            }
        }

        var runningOnBrowser = typeof window !== "undefined";
        var isBot = runningOnBrowser && !("onscroll" in window) || typeof navigator !== "undefined" && /(gle|ing|ro|msn)bot|crawl|spider|yand|duckgo/i.test(navigator.userAgent);
        var supportsIntersectionObserver = runningOnBrowser && "IntersectionObserver" in window;

        if (!isBot && supportsIntersectionObserver) {
            var disqus_observer = new IntersectionObserver(function(entries) {
                if (entries[0].isIntersecting) {
                    lazyLoadDisqusJS();
                    disqus_observer.disconnect();
                }
            });
            disqus_observer.observe(document.getElementById('disqus_thread'));
        } else {
            lazyLoadDisqusJS();
        }
    </script>
    <noscript>Please enable JavaScript to view the <a href="https://disqus.com/?ref_noscript">comments powered by Disqus.</a></noscript>
    {{- end -}}
</div>