Note: xsrf plugin
<script src="//cdn.jsdelivr.net/npm/tammy/umd.min.js"></script>
<script src="//cdn.jsdelivr.net/npm/tammy-plugin-xsrf/umd.min.js"></script>
tammy.http.install(tammyPluginXsrf);
npm install tammy --save
npm install tammy-plugin-xsrf --save
// es6
import { http } from 'tammy';
import xsrf from 'tammy-plugin-xsrf';
http.install(xsrf);