anchor.diff:  
   (* documented/assertions *)
   let notDisplayed item = notDisplayed item browser
  -   
  +
   (* documented/assertions *)
   let enabled item = enabled item browser
   
  
positive.code: //browser related
  (* documented/actions *)
  let pin direction = pin direction browser
      
  (* documented/actions *)
  let start b =
      browser <- start b
  
negative.code: (* documented/actions *)
  let chrome = chrome
  (* documented/actions *)
  let chromium = chromium
  (* documented/actions *)
  let safari = safari
  
  