content: -- https://gist.github.com/mayoff/1138816
  tell application "Google Chrome"
  	activate
  	set theUrl to URL of active tab of first window
  
  	if (count every window) = 0 then
  		make new window
  	end if
  
  	set found to false
  	set theTabIndex to -1
  	repeat with theWindow in every window
  		set theTabIndex to 0
  		repeat with theTab in every tab of theWindow
  			set theTabIndex to theTabIndex + 1
  			if theTab's URL = theUrl then
  				set found to true
  				exit repeat
  			end if
  		end repeat
  
  		if found then
  			exit repeat
  		end if
  	end repeat
  
  	if found then
  		tell theTab to reload
  		set theWindow's active tab index to theTabIndex
  		set index of theWindow to 1
  	else
  		tell window 1 to make new tab with properties {URL:theUrl}
  	end if
  
  	set isloading to 1
  	repeat while isloading is not false
  		tell application "Google Chrome"
  			set isloading to loading of active tab of window 1
  		end tell
  	end repeat
  
  	return
  
  end tell
  