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Constants

CONTENT_TYPE = "Content-Type"
 
POLICY = "Feature-Policy"
 

The Feature-Policy header has been renamed to Permissions-Policy. The Permissions-Policy requires a different implementation and isn’t yet supported by all browsers. To avoid having to rename this middleware in the future we use the new name for the middleware but keep the old header name and implementation for now.

Class Public methods

new(app)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/permissions_policy.rb, line 32
def initialize(app)
  @app = app
end

Instance Public methods

call(env)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/http/permissions_policy.rb, line 36
def call(env)
  request = ActionDispatch::Request.new(env)
  _, headers, _ = response = @app.call(env)

  return response if policy_present?(headers)

  if policy = request.permissions_policy
    headers[POLICY] = policy.build(request.controller_instance)
  end

  if policy_empty?(policy)
    headers.delete(POLICY)
  end

  response
end