While preparing a reproducible example, I figured this out. The source of the questionable output was not getCurlHandle()
. It has been producing by another (next) function: curlSetOpt()
. I took care of disabling its output by using invisible()
.
It was really not bad, comparing with the effort I've made for figuring out my previous R
and RCurl
problem. But, it is always fun and educational.