{{- $pageContext := . -}}
{{- $format := "embed.html" -}}

{{- $page := print "public/" (strings.TrimPrefix
      $pageContext.Page.Site.BaseURL
      $pageContext.Page.Permalink
    ) $format
-}}

{{- $modified := partial "function-page-modified.html"
  (dict
    "Context" $pageContext
    "Format"  $format
  )
-}}

{{- with $embed := resources.Get $page -}}
  {{- if (in $embed.Content "/data/media/404.png") -}}
   {{- $modified = true -}}
  {{- end -}}
{{- end -}}

{{- if $modified -}}
  {{- partial "head-embed.html" . -}}
  {{- .Render "summary" -}}
{{- end -}}