text: // http://stackoverflow.com/questions/9515704/insert-code-into-the-page-context-using-a-content-script
  var style = document.createElement("link");
  style.rel = "stylesheet";
  style.type = "text/css";
  style.href = chrome.extension.getURL('lib/codemirror.min.css');
  (document.head || document.documentElement).appendChild(style);
  
  var style = document.createElement("link");
  style.rel = "stylesheet";
  style.type = "text/css";
  style.href = chrome.extension.getURL('fix.css');
  (document.head || document.documentElement).appendChild(style);
  
  var s = document.createElement('script');
  s.src = chrome.extension.getURL('script.min.js');
  s.onload = function() {
      this.remove();
  };
  (document.head || document.documentElement).appendChild(s);
  