From 4fe3030ad49395ad1f6670e27c0cd88ceb122279 Mon Sep 17 00:00:00 2001
From: Oleksii Kriuchykhin <okriuchykhin@biosistemika.com>
Date: Thu, 5 Jan 2017 16:13:00 +0100
Subject: [PATCH] Freeze WHITELISTED_ATTRIBUTES constatnt [SCI-102]

---
 config/initializers/constants.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/config/initializers/constants.rb b/config/initializers/constants.rb
index a3524fea3..db9006a9c 100644
--- a/config/initializers/constants.rb
+++ b/config/initializers/constants.rb
@@ -216,7 +216,8 @@ class Constants
   WHITELISTED_ATTRIBUTES = [
     'href', 'src', 'width', 'height', 'alt', 'cite', 'datetime', 'title',
     'class', 'name', 'xml:lang', 'abbr', 'style'
-  ]
+  ].freeze
+
   # Very basic regex to check for validity of emails
   BASIC_EMAIL_REGEX = URI::MailTo::EMAIL_REGEXP