fyp/views/404.html

{{ define "mainbody" }}
    <div class="page404">
        <div>
            <h1>
                404
            </h1>
            {{ if .NotFoundMessage }}
                <h2>
                    {{ .NotFoundMessage }}
                </h2>
                {{ if .GoBackLink }}
                    <div class="description">
                        <a hx-get="{{ .GoBackLink }}" hx-headers='{"REQUEST-TYPE": "htmlfull"}' hx-push-url="true" hx-swap="outerHTML" hx-target=".app">
                            👈 Go back
                        </a>
                    </div>
                {{ end }}
            {{ else }}
                <h2>
                    Page Not found
                </h2>
                <div class="description">
                    The page you were looking for does not exist
                </div>
            {{ end }}
        </div>
    </div>
{{ end }}