BadResponse : unexpected toke < when DNS traffic through Cloudflare activated



We have serveral DNS config in a business plan but if traffic through cloudflare is actived , the sites don´t work and we get this message

Status Code: 200
Status Text: BADRESPONSE: Unexpected token <

Never we had have this message until clodflare was activated.

Maybe some rule we can apply? Thanks in advance.



Then you can extrapolate there is a bug on your server and Cloudflare helped you to find it. This bad response is handled by browsers.


I think, It is not a error in the server. Something is changed in the request when it is cloudflare who redirect the traffic through itself. ¿Is it possible? Thanks.