<iframe
  style="width: 100%; height: auto;" frameBorder="0" allowfullscreen="allowfullscreen"
  src="{{.Get "url"}}/embedded/{{ if not (eq (.Get "tabs") "") }}{{ .Get "tabs" }}/{{ end }}">
</iframe>
<br><br>

<iframe
  style="width: 100%; height: auto;" frameBorder="0" allowfullscreen="allowfullscreen"
  src="https://jsfiddle.net/{{.Get "id"}}/embedded/{{ if not (eq (.Get "tabs") "") }}{{ .Get "tabs" }}/{{ end }}">
</iframe>
<br><br>

Change url parameter of JSFiddle shortcode
Change url parameter of JSFiddle shortcode
