can/bower_components/modernizr/feature-detects/json.js

MIT-licensed, client-side, JavaScript framework that makes building rich web applications easy.

// native JSON support.
// developer.mozilla.org/en/JSON

// this will also succeed if you've loaded the JSON2.js polyfill ahead of time
//   ... but that should be obvious. :)

Modernizr.addTest('json', !!window.JSON && !!JSON.parse);