I am using DataPower to proxy MobileFirst Applications and AppCenter running on a WAS Liberty Profile.
While we got great results with the Mobile Apps (Hybrid apps), we are facing some strange behaviour with the AppCenter: Basically, anytime that a /j_security_check URI arrives to DataPower, the connection fails.
What we are looking at is that we do not know how to make the Server understand that there is a proxy between it and the client (I mean, like configuring Access Mappings on IIS or SharePoint web portals).
I ran a Fiddler trace and found the following difference in the HTTP Headers
HTTP 'Cookie' Header with DataPower:
Cookie: oracle.uix=0^^GMT-3:00; WASReqURL=http://:9080/appcenterconsole/console.html
HTTP 'Cookie' Header without DataPower:
Cookie: LtpaToken2=pWORZGbPV7BvEsrPzu+fz2mOdBRIByWqee2AMNjw/8k8qJS7i6HMPSnBja46sB3dYwJIy0uEyZ3k0ftQloTGGQUt+Vqu0ZDYJ1a9CDAaLYEeMj/1ZCSMSrctfIqiq6/hoRc1ayX4GkY3gEWpDwwjAEdQKc99r6XJl5VsKKglNm4sQhkbsNFx29mVLF7bp21A3jd+GrxDfS6aEZHau6H5A5Gr5o1ZvyRBQ2aQNtLWw2DZh55GzHUj8q8muBZqPZ36ORN9RXSxemwMtzLqUedJ/K6Tps3WLtqLdCXV9YmQj6V4zCBtQvLjKHoRQ1PYCNzm
I am testing the LTPA token generation in DataPower, but, in the meantime, I would like to know if there is any documentation regarding this use case.
The link you pointed to is documentation that describes an example of how to configure DataPower to do LTPA token generation and proxy authentication to the Worklight Server.
You don't give enough information to tell what is causing your problem on requests that go through DataPower vs. the ones that do not go through DataPower. Typically to debug these kinds of problems you need a debug trace from DataPower, a copy of the DataPower configuration and maybe a packet trace. These things often contain confidential information so if you have an IBM support contract, I would open a PMR with Worklight and submit those items so we can help you with that.
You don't say what your time line is, but there is likely to be a sample configuration and some updated documentation about how to integrate DataPower and Worklight with in the next few weeks.