Untitled

Extracting csrf-token attribute using Ext.core
<!DOCTYPE html>
<html>
<head>
  <title>Sencha on Rails</title>
  <!-- styles, scripts etc. -->
  <meta name="csrf-param" content="authenticity_token" />
  <meta name="csrf-token" content="JzrbB8G0gpcKoWcnL8+AllPSXzUVwqDSp5yjgEGqYwk=" />
</head>
<body></body>
</html>

var csrfToken = jQuery("meta[name=csrf-token]").attr("content");
> "JzrbB8G0gpcKoWcnL8+AllPSXzUVwqDSp5yjgEGqYwk="

var csrfToken = Ext.query('meta[name=csrf-token]')[0].getAttribute('content');

var csrfToken = Ext.select('meta[name=csrf-token]').elements[0].getAttribute('content');