1 files changed, 17 insertions, 2 deletions
diff --git a/app/lib/sanitize_config.rb b/app/lib/sanitize_config.rb
index 74a1d93fb..102dce2d2 100644
--- a/app/lib/sanitize_config.rb
+++ b/app/lib/sanitize_config.rb
@@ -30,12 +30,25 @@ class Sanitize
         next true if e =~ /^(h|p|u|dt|e)-/ # microformats classes
         next true if e =~ /^(mention|hashtag)$/ # semantic classes
         next true if e =~ /^(ellipsis|invisible)$/ # link formatting classes
-        next true if %w(center centered).include?(e)
+        next true if %w(center centered abstract).include?(e)
       end
 
       node['class'] = class_list.join(' ')
     end
 
+    DATA_NAME_ALLOWLIST_TRANSFORMER = lambda do |env|
+      node = env[:node]
+      name_list = node['data-name']&.split(/[\t\n\f\r ]/)
+
+      return unless name_list
+
+      name_list.keep_if do |name|
+        next true if %w(summary abstract).include?(name)
+      end
+
+      node['data-name'] = name_list.join(' ')
+    end
+
     LINK_REL_TRANSFORMER = lambda do |env|
       return unless env[:node_name] == 'a' and env[:node]['href']
 
@@ -71,10 +84,11 @@ class Sanitize
         'a'          => %w(href rel class title),
         'span'       => %w(class),
         'abbr'       => %w(title),
-        'blockquote' => %w(cite),
+        'blockquote' => %w(cite data-name),
         'ol'         => %w(start reversed),
         'li'         => %w(value),
         'img'        => %w(src alt title),
+        'p'          => %w(data-name),
       },
 
       add_attributes: {
@@ -90,6 +104,7 @@ class Sanitize
 
       transformers: [
         CLASS_WHITELIST_TRANSFORMER,
+        DATA_NAME_ALLOWLIST_TRANSFORMER,
         UNSUPPORTED_HREF_TRANSFORMER,
         LINK_REL_TRANSFORMER,
       ]