defines content security policy (#2719)

Co-authored-by: Sri Harsha <sriharsha.poosa@gmail.com>

config/initializers/content_security_policy.rb

@@ -5,17 +5,14 @@
 # For further information see the following documentation
 # https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy
 
-# Rails.application.config.content_security_policy do |policy|
-#   policy.default_src :self, :https
-#   policy.font_src    :self, :https, :data
-#   policy.img_src     :self, :https, :data
-#   policy.object_src  :none
-#   policy.script_src  :self, :https
-#   policy.style_src   :self, :https
-
-#   # Specify URI for violation reports
-#   # policy.report_uri "/csp-violation-report-endpoint"
-# end
+Rails.application.config.content_security_policy do |policy|
+  policy.default_src :self, :https
+  policy.font_src :self, :https, :data, "*.gstatic.com  *.fontawesome.com"
+  policy.img_src :self, :https, :data, "*.google-analytics.com *.gstatic.com *.googletagmanager.com"
+  policy.script_src :self, :https, :unsafe_inline, :unsafe_eval, "https://tagmanager.google.com https://www.googletagmanager.com https://apps.usw2.pure.cloud *.fontawesome.com *.google-analytics.com"
+  policy.style_src :self, :https, :unsafe_inline, "https://tagmanager.google.com https://www.googletagmanager.com https://fonts.googleapis.com *.fontawesome.com"
+  policy.media_src :self, :https, :data
+end
 
 # If you are using UJS then enable automatic nonce generation
 # Rails.application.config.content_security_policy_nonce_generator = -> request { SecureRandom.base64(16) }