Oracle Access Manager (OAM) Detached Credential Collector (DCC) - Tunneling Causes Application Development Framework (ADF) Based Custom Login Page To Not Render Correctly (Doc ID 2619326.1)

Scenario

DCC WebGate: Ext_OHS_1
Resource WebGate: Ext_OHS_2
WebGate for Internal requests:  Int_OHS_A

1. Requests to OHS protected by the resource webgate Ext_OHS_2, use the DCC webgate to authenticate users with a federration IDP.  This works fine
2. Requests to internal resources that use Int_OHS_A, also redirect to the DCC webgate, and if the standard LDAPScheme is used to protect the resources in Int_OHS_A app domain, logins also works fine.  
3. The problem...  Switch from the standard LDAPScheme to a scheme for a custom ADF login application, at the context "/login" the /login resource is not accessible.  The DCC tunnel configuration for the custom ADF login application, context does not seem to be working.

Steps to Reproduce Summary

• Created ADF custom login page and deployed on weblogic servers
• It is successfully rendered when accessing the adf custom login page using weblogic server host and port
• After enabling DCC tunneling on the webgate, when accessing the same custom login page, it is not rendering