The upload resource feature is not working for me, either in secure[dot]dynawebs[dot]net[slash]_studiolite-dist or in my local test server. I know it's in beta stage, so i'm considering that may be a bug or a misconfiguration.
Here are the details of the last requisition visible on the network console of firebug:
Request
GET /WebService/SubmitData.ashx?command=Commit&cookie=ea9647e7-8016-48b4-83a2-3a6cabe26c4d&callback=jQuery191037399344732932005_1395845445867&prm=&_=1395845445878 HTTP/1.1
Host: pluto.signage.me
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:27.0) Gecko/20100101 Firefox/27.0
Accept: */*
Accept-Language: pt-BR,pt;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: secure[dot]dynawebs[dot]net[slash]_studiolite-dist
Cookie: ASP.NET_SessionId=p0sik12yfbzvs4rgn320wxhc
Connection: keep-alive
Response:
HTTP/1.1 200 OK
Cache-Control: private
Content-Length: 224
Content-Type: text/plain; charset=utf-8
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Access-Control-Allow-Origin: *
Date: Wed, 26 Mar 2014 15:02:16 GMT