GTM Monitor to authenticate on proxy and then connect to External Website

hi all,

 

trying for sometime to get the GTM monitor to connect to the proxy authenticate using basic auth and then proxy then connect to the external server. i am able to make the connection via a curl from the GTM cli , however unable to use the right config on the monitor to make the connection successful.

 

here is the sample monitor config

gtm monitor https XXXXXXX { compatibility "enabled" defaults-from https interval 30 probe-timeout 5 recv "200 OK" send "GET /abcd.com:443 HTTP/1.1\r\nHost: abcd.com\r\nProxy-Authorization: Basic XXXXXXX==\r\nProxy-Connection: Keep-Alive\r\nGET /bigip/healthcheck -H Authorization: Basic YYYYYYY HTTP/1.1\r\nHost: abcd.com\r\nAccept: /\r\n\r\n" timeout 91

 

}

Any help is much appreciated the pool member is the proxy ip ====below is the curl command that suceeds===