FIX: ignore canonical link for medium.com oneboxes (#14278)

diff --git a/lib/onebox/helpers.rb b/lib/onebox/helpers.rb
index 09383d5..94138de 100644
--- a/lib/onebox/helpers.rb
+++ b/lib/onebox/helpers.rb
@@ -7,7 +7,7 @@ module Onebox
 
     class DownloadTooLarge < StandardError; end
 
-    IGNORE_CANONICAL_DOMAINS ||= ['www.instagram.com', 'youtube.com']
+    IGNORE_CANONICAL_DOMAINS ||= ['www.instagram.com', 'medium.com', 'youtube.com']
 
     def self.symbolize_keys(hash)
       return {} if hash.nil?

GitHub sha: 11a07b37e15f20f5de960243b9ad611fd477af6b

This commit appears in #14278 which was approved by eviltrout. It was merged by techAPJ.

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