Hi,
I can try this for you and see if it works but I am also a bit doubtful because the engine the game uses ( Solar2D ) became open source a few years ago and the support for HTML never left the Beta stage. I will post here my attempt results.
On a brighter note I am working on Code Adventures 2 with Unity3D so it will have a wider platform support but it is also a long way from being finished. ^^