tpl/tplimpl: Improve embedded templates

- Do not call the YouTube oEmbed API
- Do not include the Hugo version in RSS feeds

Closes #12396

tpl/tplimpl/embedded/templates/_default/rss.xml

@@ -48,7 +48,7 @@
     <title>{{ if eq .Title .Site.Title }}{{ .Site.Title }}{{ else }}{{ with .Title }}{{ . }} on {{ end }}{{ .Site.Title }}{{ end }}</title>
     <link>{{ .Permalink }}</link>
     <description>Recent content {{ if ne .Title .Site.Title }}{{ with .Title }}in {{ . }} {{ end }}{{ end }}on {{ .Site.Title }}</description>
-    <generator>Hugo {{ hugo.Version }}</generator>
+    <generator>Hugo</generator>
     <language>{{ site.Language.LanguageCode }}</language>{{ with $authorEmail }}
     <managingEditor>{{.}}{{ with $authorName }} ({{ . }}){{ end }}</managingEditor>{{ end }}{{ with $authorEmail }}
     <webMaster>{{ . }}{{ with $authorName }} ({{ . }}){{ end }}</webMaster>{{ end }}{{ with .Site.Copyright }}

tpl/tplimpl/embedded/templates/shortcodes/youtube.html

@@ -8,10 +8,10 @@
 @param {int} [end] The time, measured in seconds from the start of the video, when the player should stop playing the video.
 @param {string} [id] The video id. Optional if the id is provided as first positional argument.
 @param {string} [loading=eager] The loading attribute of the iframe element.
-@param {bool} [loop=false] Whether to indefinitely repeat the video.
+@param {bool} [loop=false] Whether to indefinitely repeat the video. Ignores the start and end arguments after the first play.
 @param {bool} [mute=false] Whether to mute the video. Always true when autoplay is true.
 @param {int} [start] The time, measured in seconds from the start of the video, when the player should start playing the video.
-@param {string} [title] The title attribute of the iframe element. Defaults to the title returned by YouTube oEmbed API.
+@param {string} [title] The title attribute of the iframe element. Defaults to "YouTube video".
 
 @returns {template.HTML}
 
@@ -26,20 +26,6 @@
 {{- if not $pc.Disable }}
   {{- with $id := or (.Get "id") (.Get 0) }}
 
-    {{- /* Get data from the YouTube oEmbed API. */}}
-    {{- $q := querify "url" (printf "https://www.youtube.com/watch?v=%s" $id) "format" "json" }}
-    {{- $url := printf "https://www.youtube.com/oembed?%s" $q }}
-    {{- $data := dict }}
-    {{- with resources.GetRemote $url }}
-      {{- with .Err }}
-        {{- erroridf $remoteErrID "The %q shortcode was unable to get remote resource %q. %s. See %s" $.Name $url . $.Position }}
-      {{- else }}
-        {{- $data = .Content | transform.Unmarshal }}
-      {{- end }}
-    {{- else }}
-      {{- erroridf $remoteErrID "The %q shortcode was unable to get remote resource %q. See %s" $.Name $url $.Position }}
-    {{- end }}
-
     {{/* Set defaults. */}}
     {{- $allowFullScreen := "allowfullscreen" }}
     {{- $autoplay := 0 }}
@@ -50,7 +36,7 @@
     {{- $loop := 0 }}
     {{- $mute := 0 }}
     {{- $start := 0 }}
-    {{- $title := $data.title }}
+    {{- $title := "YouTube video" }}
 
     {{- /* Get arguments. */}}
     {{- if in (slice "false" false 0) ($.Get "allowFullScreen") }}