class Grape::App::Configuration < ActiveSupport::InheritableOptions def middleware(&block) self[:middleware] ||= [] self[:middleware].push(block) if block super end def cors(&block) self.cors = block if block super end def cors_allow_origins=(value) warn "[DEPRECATION] setting `config.cors_allow_origins` is deprecated. Please use `config.cors` with a block instead. [#{caller(1..1).first}]" value = Array.wrap(value) cors do allow do origins *value # rubocop:disable Lint/AmbiguousOperator resource '*', headers: :any, methods: %i[get post options delete put] end end end end