Arduino Pro : Can it be interfaced with Yun Shield ?

Development Tools IDE 1.x
1

Hi,

I try to use the Yun Shield (link), with an Arduino Pro. I just want to run something like the first example of the Bridge librairie : (link)

But the Arduino never pass the line : Bridge.begin();
(I know it by setting up a LED before and setting it down juste after but the LED is still on)

I've connected the PIN-0 (RX1) of the Yun Shield with PIN-0 (RX) of the Arduino Pro and PIN-1 (TX1) of the Yun Shield with PIN-1 (TX) of the Arduino Pro.

After login into my Yun shield via SSH, i try this :

wget http://localhost/arduino/digital/13/1

And I only receive :

 Connecting to localhost (127.0.0.1:80)
wget: server returned error: HTTP/1.1 500 OK

So, does Arduin Pro can use the Bridge librairie ?
Should I change something ?

Thanks for your replies.