Unfortunately you cannot specify mode in ruby 1.8 which we are currently locked down to on our servers. I've pushed a fix to this issue to the current repo which works on all versions.

I'm not sure why that "allow access to unaltered server json" change added itself to this pull request - I'd rather have created another one for that change. Having said that - I would like access to the original server json from my Ruby code.

The purpose of the codekits is to abstract away json/api and provide a standard interface. Thus if new json values are added then a bug would be opened to add support.

Can I ask what reason to have access to the orignal json versus explicit models?

I'm probably recapping what you already know, but:

The HTML5 SDK exposes the the back-end web services relatively transparently to the browser javascript. They do this by going through a proxy server that the SDK also provides. In fact we provide three servers - Ruby, Java, and PHP. They should look identical from the perspective of the browser code in the SDK.

In order to ensure the data returned to the browser is exactly the same from each server, we can either write code to convert the codekit object model into JSON, and try to be very careful that our Ruby, Java, and PHP codes all construct the exact same JSON for their respective object models; or we can simply return the JSON that codekit received from the back-end service, which we know will be identical across the different servers.

It is also unnecessary work for the codekit to convert the JSON into an object model, and then have our SDK servers immediately convert it back into functionally equivalent JSON. It makes sense to provide some mechanism to get the raw server response from codekit; I'm entirely open to changing the mechanism, given the requirements above, if you have a better way to do it.