resolved

added the following to web.config of the WCF service

system.webServer
httpProtocol
customHeaders
add name="Access-Control-Allow-Origin" value="*" /
/customHeaders
/httpProtocol
/system.webServer

with tags of course

digging a little further i see this

Origin 'http://appery.io' is therefore not allowed access.

taking a second look, one of the parameters is a date and it looks like the date is being passed differently between the app version and the web version, is there a way to detect what platform it is running on

i have an external REST service in my app which in the data test screen gets the correct response, when i down load the app everything works fine, but in the online debug/test screen and the mobile web version no data gets displayed. i've tries creating a proxy but still the same result