Why is rel_length in neo4jrb not working?

Question

Ruby on Rails

There is a User class.
class User
include Neo4j::ActiveNode
...
has_many :out, :friend, rel_class: Friend
...
end
Users communicate through friend
class Friend
include Neo4j::ActiveRel
from_class User
to_class User
type 'friend'
end Retrieve
all friends of friends current user.
Next line: @user.friend(:f, :r, rel_length:2).pluck(:f) returns the friends of the current user. And you need friends of friends. Moreover, instead of rel_length:2, you can write any key:value pair. Even abracadabra. It seems to ignore this third parameter.
@user.friend.friend(:f).where("f.user_id <> '#{@user.user_id}'").pluck(:f)
So far I've only found this solution, but it seems to me that it's not quite optimal solution.
Who faced, prompt please.

Answer 1

This will not work in any normal social network + browser security settings will make themselves felt. Although in the same VK you can do a tricky trick with click junking and repost on behalf of the user

Answer 2

– WAT?
I apologize for the picture, but that's the look on my face when people ask questions like this.