title: JSON and Quirks mode
body: <p>I am creating a script which outputs JSON. It has the correct content type (application/json). When viewed in Firefox, the "Page Info" says it is in Quirks mode. My JSON passes through a validator with no errors or warnings.</p>
  
  <p>Does Firefox always display JSON in Quirks mode, or is there something I can put in my output to elevate it into Standards mode?</p>
  
  <p>I'm asking this question as a matter of curiousity rather than because it will destroy my application, but I would rather all program output be as compliant as possible with any existing recognised protocol or standards.</p>