If you are new to "Security Checkpoint" concept then you'd better read About Security Checkpoint first.
After you developed the Security Checkpoint in the database IFS Web Client framework will automatically support it. You don't need to implement anything specific for the Web Client. However there are a few limitations and this document describes them.
The limitations exist because a web interface is less "controlled" than a thick client, and cannot be as tightly controlled. You as a developer must adapt to these limitations when developing a security checkpoint which will affect IFS Web Client.
Basically, IFS Web Client open the authentication
dialog and set the working window state to one step back in history whenever an
exception of type ifs.fnd.base.ManualDecisionException
occurs. When the user submit the
password, the framework automatically submit the previous request to the server
with the given password and the user id. For this to work smoothly IFS Web Client
framework expects followings.