I just added this ticket. I'm writing a Sinatra API to be consumed by Rails and I've run into an issue where the ActiveResource documentation specifies that on update you should return an HTTP 204 status with no body. The problem is that Rack doesn't allow you to set the Content-Length header of HTTP 204 responses.
The workaround seems to be to return a 200 response with a zero length Content-Length header and body, but that's not what the docs say.
The fix is simple and laid out in the ticket, but here it is.
def load_attributes_from_response(response) if !response['Conent-Length'].blank? && response['Content-Length'] ! = "0" && response.body.strip.size > 0 load(self.class.format.decode(response.body)) end end
This brings up an issue with the HttpMock class included with ActiveRecord. It defaults to specifying a Content-Type header of 0 for all requests that don't have a body. Assuming Rack has the HTTP rules correct (204 shouldn't have that header), then the HttpMock class is also broken.
I've just started cloning the repository to create a patch, but I'm not sure how I should update the tests. Any pointers would be great. Otherwise if someone wants to throw in the fix for me...
Thanks.
Mike
Cheers,
Taryn