Error Link Grafana

Hello, I am learning to use Grafana. I am creating a page to display my Grafana dashboard, but the page does not allow me to embed the link to my dashboard.


  <h2>Grafana Dashboard</h2>
  <iframe src="" width="100%" height="500px" frameborder="0"></iframe>

It shows the following errors:

chromewebdata/:1 Refused to display '' in a frame because it set 'X-Frame-Options' to 'deny'.
(index):6583 crbug/1173575, non-JS module files deprecated.
(anonymous) @ (index):6583
favicon.ico:1 Failed to load resource: the server responded with a status of 404 (Not Found)