[Seaside] Problem with Images

[Rick Zaccone]

I am trying to display an image with Seaside.  I'm using Squeak  
3.8.   This works:

renderContentOn: html
     html image: '/bunnies.jpg'

If I change rendererClass so that I'm using the new API, it no longer  
works:

rendererClass
     ^WARenderCanvas

Instead, I just get the string /bunnies.jpg in my browser.  The HTML  
generated is

<img />/bunnies.jpg

which clearly isn't right.  Would someone please tell me what's wrong  
here?

Rick