Io: https protocol is not supported

I am trying to extract a file via HTTPS in Io language :

url := URL with("https://api.example.com")
url fetch println

And I get this:

 Error_0x7f97e1509a80:
  location         = "/opt/local/lib/io/addons/Socket/io/URL.io:232"
  message          = "Protocol 'https' unsupported"

I tried to find something on the net, but as you know, this is not easy because of the name. I found this thread http://tech.groups.yahoo.com/group/iolanguage/message/10898 , but it's pretty old.

How can I get HTTPS support in Io?

EDIT

I found that there is a SecureSocket addon, a shell on top of OpenSSL, in the Io source. However, it was not installed when I did sudo port io installon my MacBook with Mountain Lion. I tried to build it from a source, but no luck. It also was not created for me on a Linux machine.

EDIT2

Io (git clone https://github.com/stevedekorte/io.git) ( script build.sh), , cmake OpenSSL:

 -- Found OpenSSL: /usr/lib/libssl.dylib;/usr/lib/libcrypto.dylib  

SecureSocket . readme: https://github.com/stevedekorte/io/tree/master/addons/SecureSocket :

DTLS1 , OpenSSL 0.9.8e. d1_both.c,    . .. .. , ( ) build.io. , DTLS OpenSSL 0.9.8 . , , , . . .

+5
2

, , wget curl, / .

+2

- , , stud Io, SSL . .

stud - Scalable TLS Unwrapping Daemon stud - , TLS/SSL . 10 .

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