title: Google Analytics using regex for a search and replace filter to remove string after a?
body: <p>I need to write a search and replace filter to remove the tracking code appended to URL. I need to remove the string after the question mark. I have no idea where to even start.</p>
  
  <p>/folder/apps.aspx?lots-of-tracking-blah </p>
  
  <p>Thanks,
  P</p>