[BUG] Output Port not going to the right side as requested

Hello,

When creating a custom node I can't get to lock the output port on the right side of the node. I am sure this is a silly mistake and I should have missed something.
Here is a pastebin with my code : https://pastebin.com/nBwFNciw

Thanks for your help =D

Edit : with your own demo code with "right" instead of "left" it doesn't work too :)