HTTP monitor send string problem

Hi,

 

When I create Health monitor HTTP, I use this in the send string : send "GET / HTTP/1.1\r\nHost: \r\nConnection: Close\r\n\r\n"

 

When I save, and then try to change something, the send string box change to this : GET / HTTP/1.1 Host: Connection: Close

 

When I try to save again it tell me that "Value may not contain literal newline characters" Its kind of wierd, everytime I want to change something in the monitor I need to rewrite the send string ??

 

Thanks