tpl: Remove twitter:domain tag from internal shortcode

It seems this metadata tag is no longer used by Twitter, as it has
been removed from their Cards Markup Tag Reference since at least
2013 according to a post on the W3 mailing list.

See: https://dev.twitter.com/cards/markup
See: https://lists.w3.org/Archives/Public/www-validator/2013Oct/0025.html

diff --git a/tpl/tplimpl/template_embedded.go b/tpl/tplimpl/template_embedded.go
index f0b32bdd69a1111126fce0835d15f53543c23945..44bd76189ea19ec1f67fd5bef00c6441afea3e0c 100644 (file)
--- a/tpl/tplimpl/template_embedded.go
+++ b/tpl/tplimpl/template_embedded.go
@@ -216,7 +216,6 @@ func (t *GoHTMLTemplate) EmbedTemplates() {
 <meta name="twitter:title" content="{{ .Title }}"/>
 <meta name="twitter:description" content="{{ with .Description }}{{ . }}{{ else }}{{if .IsPage}}{{ .Summary }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}{{ end }}"/>
 {{ with .Site.Social.twitter }}<meta name="twitter:site" content="@{{ . }}"/>{{ end }}
-{{ with .Site.Social.twitter_domain }}<meta name="twitter:domain" content="{{ . }}"/>{{ end }}
 {{ range .Site.Authors }}
   {{ with .twitter }}<meta name="twitter:creator" content="@{{ . }}"/>{{ end }}
 {{ end }}{{ end }}`)