fix: use safeHTML for description in metadata (#334)

layouts/partials/head/meta.html

@@ -7,7 +7,7 @@
 {{ $keywords := default .Site.Params.Keywords .Keywords }}
 
 {{- with partial "utils/description" . }}
-  <meta name="description" content="{{ trim (. | plainify) "\n" }}" />
+  <meta name="description" content="{{ trim (. | plainify) "\n" | safeHTML }}" />
 {{- end }}
 {{- with $keywords }}
   <meta name="keywords" content="{{ delimit . "," }}" />

layouts/partials/microformats/opengraph.html

@@ -5,7 +5,7 @@
   <meta property="og:site_name" content="{{ . }}" />
 {{- end }}
 {{- with partial "utils/description" . }}
-  <meta property="og:description" content="{{ trim (. | plainify) "\n" }}" />
+  <meta property="og:description" content="{{ trim (. | plainify) "\n" | safeHTML }}" />
 {{- end }}
 <meta property="og:type" content="{{ if .IsPage }}article{{ else }}website{{ end }}" />
 <meta property="og:url" content="{{ .Permalink }}" />

layouts/partials/microformats/schema.html

@@ -8,7 +8,7 @@
       "name": "{{ .Site.Title }}",
       "url": "{{ .Site.BaseURL }}",
       {{- with partial "utils/description" . }}
-      "description": "{{ trim (. | plainify) "\n" }}",
+      "description": "{{ trim (. | plainify) "\n" | safeHTML }}",
       {{- end }}
       "thumbnailUrl": "{{ $thumbnail }}"
       {{- with .Site.Params.GeekdocContentLicense }},
@@ -26,7 +26,7 @@
       "headline": "{{ (partial "utils/title" .) | safeJS }}",
       "alternativeHeadline": "{{ .Params.lead }}",
       {{- with partial "utils/description" . }}
-      "description": "{{ trim (. | plainify) "\n" }}",
+      "description": "{{ trim (. | plainify) "\n" | safeHTML }}",
       {{- end }}
       "inLanguage": {{ .Site.Language.Lang }},
       "isFamilyFriendly": "true",

layouts/partials/microformats/twitter_cards.html

@@ -21,7 +21,7 @@
 {{- end }}
 <meta name="twitter:title" content="{{ partial "utils/title" . }}" />
 {{- with partial "utils/description" . }}
-  <meta name="twitter:description" content="{{ trim (. | plainify) "\n" }}" />
+  <meta name="twitter:description" content="{{ trim (. | plainify) "\n" | safeHTML }}" />
 {{- end }}
 {{- with .Site.Social.twitter -}}
   <meta name="twitter:site" content="@{{ . }}" />