I’m running a build of Grafana,
v5.0.x – in both Firefox and Chrome, I can’t actually get any queries to draw. I can see the metric paths in the series, but nothing is ever drawn to the screen. In the dev console, I see this:
Failed to load http://internal.graphite.abc.com/render: Request header field X-Panel-Id is not allowed by Access-Control-Allow-Headers in preflight response.
I get this for any graph on any dashboard. My setup isn’t very complex at all, and a downloaded / installed version of Grafana works out of the box, without the above error.
I’m not exactly sure what this error means. If it’s related, I’m hosting my local build on a laptop at home that accesses the graphite host over VPN.