{{- $breadcrumb := false -}}
{{- $items := slice -}}
{{- if not .Params.disableBreadcrumb -}}
  {{- range $index, $ancestor := .Ancestors.Reverse -}}
    {{- $items = $items | append (dict
      "@type" "ListItem"
      "position" (add $index 1)
      "name" $ancestor.Title
      "item" $ancestor.Permalink
    ) -}}
  {{- end -}}
  {{- $items = $items | append (dict
    "@type" "ListItem"
    "position" (add (len $items) 1)
    "name" .Title
    "item" .Permalink
  ) -}}
  {{- if gt (len $items) 1 -}}
    {{- $breadcrumb = dict
      "@type" "BreadcrumbList"
      "@id" (printf "%s#breadcrumb" .Permalink)
      "itemListElement" $items
    -}}
  {{- end -}}
{{- end -}}
{{- return $breadcrumb -}}