Set canonical port based on protocol

config/initializers/canonical_rails.rb

@@ -6,6 +6,7 @@ CanonicalRails.setup do |config|
   # This is the main host, not just the TLD, omit slashes and protocol. If you have more than one, pick the one you want to rank in search results.
 
   config.host = SERVER_URL
+  config.port = SERVER_PROTOCOL == "https" ? 443 : 80
 
   # http://en.wikipedia.org/wiki/URL_normalization
   # Trailing slash represents semantics of a directory, ie a collection view - implying an :index get route;