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-rw-r--r--actionpack/lib/action_controller/vendor/html-scanner/html/sanitizer.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/actionpack/lib/action_controller/vendor/html-scanner/html/sanitizer.rb b/actionpack/lib/action_controller/vendor/html-scanner/html/sanitizer.rb
index 114b0e73c9..6b269e7a31 100644
--- a/actionpack/lib/action_controller/vendor/html-scanner/html/sanitizer.rb
+++ b/actionpack/lib/action_controller/vendor/html-scanner/html/sanitizer.rb
@@ -1,6 +1,7 @@
require 'set'
require 'cgi'
require 'active_support/core_ext/class/attribute'
+require 'active_support/core_ext/class/attribute_accessors'
module HTML
class Sanitizer