# Be sure to restart your server when you modify this file. # Define an application-wide content security policy # 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 :none policy.font_src :self, 'https://cdnjs.cloudflare.com' policy.img_src :self, 'https://cdnjs.cloudflare.com', 'https://projecteuler.net' policy.object_src :none policy.script_src :self, 'https://cdnjs.cloudflare.com' policy.style_src :self, :unsafe_inline policy.connect_src :self # Specify URI for violation reports # policy.report_uri "/csp-violation-report-endpoint" end # If you are using UJS then enable automatic nonce generation # Rails.application.config.content_security_policy_nonce_generator = -> request { SecureRandom.base64(16) } # Report CSP violations to a specified URI # For further information see the following documentation: # https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only # Rails.application.config.content_security_policy_report_only = true