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How To Enable IFrame Support on Heroku with Ruby on Rails and Sinatra

       

This actually has more to do with Rails and/or Sinatra than it does with Heroku. You have to enable IFrame support in your headers explicitly.

With Rails you can add this to your config/application.rb file


config.action_dispatch.default_headers = {
    'X-Frame-Options' => 'ALLOWALL'
}

In Sinatra you add this declaration in the configure block


configure do
    set :protection, except: [:frame_options]
end
Tagged w/ #ruby on rails #sinatra #iframe #heroku