How I can change the default CSP directives in header, to added img-src without use meta tag? I’m try this in Rails, but nothing change:
Rails.application.config.action_dispatch.default_headers.merge!({'Content-Security-Policy' => "upgrade-insecure-requests; base-uri 'self'; object-src 'none'; script-src https://mydomain.com/logs/ https://mydomain.com/sidekiq/ https://mydomain.com/mini-profiler-resources/ https://mydomain.com/assets/ https://mydomain.com/brotli_asset/ https://mydomain.com/extra-locales/ https://mydomain.com/highlight-js/ https://mydomain.com/javascripts/ https://mydomain.com/plugins/ https://mydomain.com/theme-javascripts/ https://mydomain.com/svg-sprite/; worker-src 'self' https://mydomain.com/assets/ https://mydomain.com/brotli_asset/ https://mydomain.com/javascripts/ https://mydomain.com/plugins/; frame-ancestors 'self'; manifest-src 'self'; img-src data: https://mydomain.com https://imgur.com"})