REST Api Response META NAME ROBOTS

Hello community,

I have a very simple REST API connection doing a POST of JSON messages via AZURE APIM. 

It worked successfully for few weeks until a day ago when i started receiving a bad response as below.

<META NAME="ROBOTS" CONTENT="NOINDEX, NOFOLLOW"><meta name="format-detection" content="telephone=no"><meta name="viewport" content="initial-scale=1.0"><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><script type="text/javascript" src="/_Incapsula_Resource?......................................
 

Is there anything to put in the http header to avoid this message or any suggestion will be appreciated.

Thanks,

Jimmy Christian.