class Capybara::Server::AnimationDisabler

def directive_nonces(headers)
  headers.fetch('Content-Security-Policy', '')
         .split(';')
         .map(&:split) # rubocop:disable Style/MapToHash
         .to_h do |s|
           [
             s[0], s[1..].filter_map do |value|
               /^'nonce-(?<nonce>.+)'/ =~ value
               nonce
             end[0]
           ]
         end
end