I ran into a problem with line 31 of examples/rts-common.js when running on Chrome:

> var word16addCarry = function function(a, b, c) {

Shouldn't that be:

> var word16addCarry = function(a, b, c) {

With that change it runs fine for me (GHC 6.12.3). Chrome also wasn't happy loading from the local file system (Cross origin requests are only supported for HTTP), so I just used happstack to test:

> import Happstack.Server

> main = simpleHTTP nullConf (fileServe [] "./")