mondo.rb

require 'faraday'
require 'launchy'

conn = Faraday.new(url: 'https://www.crowdcube.com') do |faraday|
  faraday.adapter  Faraday.default_adapter  # make requests with Net::HTTP
  faraday.options.timeout = 5
  faraday.options.open_timeout = 2
end

success = false

until success
  begin
    response = conn.get('/investment/mondo-20857')
    success = response.success?
    puts response.status
  rescue => e
    puts e
  ensure
    sleep 1
  end
end

Launchy.open 'https://www.crowdcube.com/investment/mondo-20857'