Grafana Alerting Contact points error

Hello, I recently installed Grafana V.11.0 in Ubuntu 22.04.2 LTS
and when i go to the contact points page this shows up


I have tried reinstalling Grafana but didn’t solve the issue, I have no idea how to solve this, if someone could help me I will appreciate it

Use the browser console and inspect response for API call, which returns list of contact points.

Seams like the JSON has like some extra text but I don’t know where it comes from

Stop Grafana, drop/delete used Grafana database and start it again (of course you will loose everything in Grafana).
If it didn’t help, then it is something in front of Grafana: reverse proxy, proxy, waf,… which is probably changing requests payloads.

I made a clean install and it didn’t work either


I checked the same json in my local machine in witch grafana works and the image you can see that the only difference is some characters are escaped and some more “]}” at the end.
I don’t know how to solve this, i will try check how this json is created to check if i can solve it

I have tried in the server as localhost using a VNC and there works too, seams to be a problem when is not local host but still clueless how to solve it

I already gave you some hints:

Sorry, but i don’t understand because I’m very new to this, could you explain to me what should i do to check if this is true? and what means having a reverse proxy or waf sorry if I sounded dismissive in my comments i just didn’t understand you comment and tried other avenues

There can be some device(s) between your browser and your Grafana. Especially if you are in enterprise environment, where every request is inspected usually.