Flexible rails: authenticity token?

Question

Hi there,

I have a flex component inside a rails view. I'd like this component to place a post request to rails, so that rails renders another view. But I'm struggling with the authenticity token. I tried passing it as a URLVariable, but characters like '+' and '=' mess it up, and I get invalid authenticity_token. I'm using navigateToURL to navigate to this view. What can I do?

Thanks in advance.