back-button sends browser to idp again

[Cantor, Scott]

> How can i customize this page?

All the errors from the built-in error handling are routed through the error.vt view template as an example that uses special property names to manage the error text.

https://wiki.shibboleth.net/confluence/display/IDP30/ErrorHandlingConfiguration

> 2- My second question is how can i customize the login page with a jsp page?

You shouldn't, but if you must, delete login.vt and you can build a view in JSP in WEB-INF/jsp/login.jsp

Please just don't. You are wasting your time. Just learn Velocity.

> how can i get input from the login form to the idp web app?

I don't know what that means, and the likely answer is "by writing a lot of your own code".

-- Scott