This small After Effects with HTML Canvas Proof of Concept can be viewed at:

It basically contains a tiny engine written in JavaScript to display with AE produced compositions inside a webbrowser,

It does not use Flash and includes input boxes for processing the user interaction.

Doesn't work on all Browsers though,

the ones I successfully ran it on were:

* Windows 7 - Google Chrome Browser

* Mac OSX Lion - Safari Browser

You can download the complete tarball if you are interested:

Have a nice day,

Nikos