Webpacker: support javascript_packs_with_chunks_tag

[DanielHeath]

Webpacker in rails 5.2 adds javascript_packs_with_chunks_tag, which calls send_early_hints, which isn't implemented here.

Workaround:

  class RenderingController < RenderAnywhere::RenderingController
    def request
      r = super
      def r.send_early_hints(links)
      end
      r
    end
  end

[giangth94]

thanks @DanielHeath for suggesting a workaround, we encountered the same issue on Rails 5.2

ActionView::Template::Error
undefined method `send_early_hints' for #<OpenStruct>
NoMethodError
undefined method `send_early_hints' for #<OpenStruct>

Adding the workaround as a module under lib folder then include it in the code where we use javascript tag resolves the issue