title: React js - Unhandled Rejection (TypeError): t._innerWindow(...).widgetReady is not a function
body: <pre><code> this._innerWindowLoaded.then(function () {
        t._innerWindow().widgetReady(function () {
          t._ready = !0;
          for (var e = 0, o = t._readyHandlers; e &lt; o.length; e++) {
            var n = o[e];
            try {
              n.call(t);
            } catch (t) {
              console.error(t);
            }
          }
          t._innerWindow().initializationFinished();
        });
      });
    }),
  </code></pre>
  <p>The code is of charting_library.min.js which you can find easily in the github. I am running through this error. Actually I am connecting trading API from finnhub.io .</p>
  <p>So needed some help in this issue as soon as possible</p>
  <p>Thanks .</p>