How to load SumoMe script in a turbolinks-friendly way

setup_sumo_me.js.coffee

# Defines a namespace for my application
MyApplication = {}

# A way to pass a callback both to jQuery's "ready" and turbolinks' "page:load" events
MyApplication.onDocumentReady = (callback) ->
  $(document).ready(callback)
  $(document).on('page:load', callback)
  
# Defines a function to load the SumoMe script
MyApplication.load_sumome_script = (data_sumo_site_id) ->
  sumo = document.createElement("script")
  sumo.type = "text/javascript"
  sumo.async = true
  sumo.src = "//load.sumome.com/"
  sumo.setAttribute('data-sumo-site-id', data_sumo_site_id)
  (document.getElementsByTagName("head")[0] or document.getElementsByTagName("body")[0]).appendChild sumo

# Hooks it up
MyApplication.onDocumentReady ->
  MyApplication.load_sumome_script("your-site-id-here")