Add canonical shorturls to the header.

r2/r2/lib/pages/pages.py

@@ -797,6 +797,9 @@ class LinkInfoPage(Reddit):
 
         self.subtitle = subtitle
 
+        if self.link.shortlink:
+            self.shortlink = self.link.shortlink
+
         # if we're already looking at the 'duplicates' page, we can
         # avoid doing this lookup twice
         if duplicates is None:

r2/r2/templates/base.compact

@@ -31,6 +31,9 @@
     <link rel="apple-touch-startup-image" 
           href="/static/compact/reddit_startimg.png" />
     <link rel="canonical" href="${thing.canonical_link}" />
+    %if hasattr(thing, "shortlink"):
+      <link rel="shorturl" href="${thing.shortlink}" />
+    %endif
     <meta name="apple-mobile-web-app-status-bar-style" content="black" />
     <meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;"/>
     <title>${self.Title()}</title>

r2/r2/templates/reddit.html

@@ -62,6 +62,10 @@
       %endif
   %endif
 
+  %if hasattr(thing, "shortlink"):
+    <link rel="shorturl" href="${thing.shortlink}"/>
+  %endif
+
   %if c.allow_styles and c.site.stylesheet_contents:
      <% inline_stylesheet = (
           len(c.site.stylesheet_contents) < 1024