InfoPath Dev

using REST API to get all site user. When I click on Preview button in InfoPath Designer 2013 working fine. but after Publishing the form,in the browser it shows following error. here is My rest api URL http://site/_api/web/siteusers when I use URL in browser it shows all entries . but in Info Path form it shows error: Here is screen shot of error: https://drive.google.com/file/d/0B9e2P4StEQOWS2x0aWREb2tXSDA/view?usp=sharing

Check your SharePoint logs for info for the correlation ID. It may just be a server configuration issue - but the log files should give you more to search on.

I looked in to log files I have found 2 important messages

  1) DataAdapterException, Exception Message: The form cannot run the specified query. The remote server returned an error: (401) Unauthorized.)

  2)Non-OAuth request. IsAuthenticated=False, UserIdentityName=, ClaimsCount=0

3)Forced due to logging gap, cached @ 08/23/2016 02:26:29.73