subgraph not rendering with change to sample

I am having problems rendering this graph. Am I doing something wrong?

graph TB        
    subgraph old sys 2
        a2(new client)-->b2
        oc2(Old client)-->b2
        a3(test)-->b2
    end

    subgraph old sys 1
        a1(new client)-->b1(sys1 server)
        oc1(Old client)-->b2(test)
    end

[knsv]

I did and found tab characters to be the problem. Replace with space and it will work. Mermaid should handle the tabs eventually though. fre 30 okt. 2015 kl. 18:51 skrev mycall [e-mail]:

any chance you can review the uploaded zip?

— Reply to this email directly or view it on GitHub https://github.com/knsv/mermaid/issues/231#issuecomment-152600639.

[mycall]

Thank you, that solves my problem. I’ve been using tabs successfully without the subgraph feature but once I added subgraph, I was getting those errors.

Might be an easy regex to fix.