AbleCommerce Shopping Cart Software

I'm getting some confusing results around myCustom.ashx handler.

If i visit the handler via the browser:

i get Token.Instance.User.UserId = 162 // which is correct

If i post to the handler:
i get Token.Instance.User.UserId = 163 // obviously a new user is generated.

Any thoughts?

Probably that's because browser has a different session.

I've included IReadOnlySessionState

public class test : IHttpHandler, IReadOnlySessionState {

The issue seems to be that the session in timing out. Tho in the web.config

timeout="30" // 30 mins

<sessionState mode="InProc" timeout="30" cookieName="AC7.SESSIONID"/>