website-theme/layouts/shortcodes/displayGPX.html

{{ $url := printf "%sdata/tracks/%s" .Site.BaseURL (.Get 0) }}
{{ $url_state := querify "state" (printf "{\"urls\":[\"%s\"]}" $url) }}
{{ $iframe_url := printf "https://gpx.studio/?%s&embed&distance" $url_state }}
{{ $a_url := printf "https://gpx.studio/?%s" $url_state }}
<iframe {{ printf "src=%q" $iframe_url | safeHTMLAttr }}
        width="100%"
        height="500"
        frameborder="0"
        allowfullscreen>
            <p><a {{ printf "href=%q" $a_url | safeHTMLAttr }}></a></p>
</iframe>