rails-ajax.html

gistfile1.html

<polymer-element name="rails-ajax" extends="core-ajax">
  <script>
    Polymer({
      ready: function() {
        this.super();
        this.csrfParam = document.querySelector("meta[name=csrf-param]").content;
        this.csrfToken = document.querySelector("meta[name=csrf-token]").content;
      },

      getParams: function(params) {
        params = this.super(params);
        params[this.csrfParam] = this.csrfToken;
        return params;
      }
    });
  </script>
</polymer-element>