1 files changed, 8 insertions, 5 deletions
diff --git a/app/lib/sanitize_config.rb b/app/lib/sanitize_config.rb
index 1bba4a5a6..75c916485 100644
--- a/app/lib/sanitize_config.rb
+++ b/app/lib/sanitize_config.rb
@@ -20,22 +20,25 @@ class Sanitize
     end
 
     MASTODON_STRICT ||= freeze_config(
-      elements: %w(p br span a),
+      elements: %w(p br span a abbr del pre blockquote code b strong u sub i em h1 h2 h3 h4 h5 ul ol li),
 
       attributes: {
-        'a'    => %w(href rel class),
-        'span' => %w(class),
+        'a'          => %w(href rel class title),
+        'span'       => %w(class),
+        'abbr'       => %w(title),
+        'blockquote' => %w(cite),
       },
 
       add_attributes: {
         'a' => {
-          'rel' => 'nofollow noopener',
+          'rel' => 'nofollow noopener tag',
           'target' => '_blank',
         },
       },
 
       protocols: {
-        'a' => { 'href' => HTTP_PROTOCOLS },
+        'a'          => { 'href' => HTTP_PROTOCOLS },
+        'blockquote' => { 'cite' => HTTP_PROTOCOLS },
       },
 
       transformers: [