Facebook Graph API response not formatted.

[iamsid]

Tried a dummy API, and response was correctly formatted. But for Facebook API, the response is shown in a single line.

The headers shows content-type as text/javascript; charset=UTF-8, whereas for the same request on Postman, the content type is application/json; charset=UTF-8.
This app is running on a self-hosted remote server.

[jonrosner]

Did you try both the server and the extension proxy?

Also it seems that the response is an error, maybe this is the problem?

[iamsid]

I have only used server. Haven't installed extension.

Even with the correct response, its the same. I would have to hide the whole text, that's why I shared the error message.
I do see continuous API calls for checking extension in the console, could that cause some problem?