Reroute to custom webpage for ERPNext Mobile

Working on a custom mobile app container using ERPNext Mobile

In ERPNext Mobile after successful login, the app returns the /desk
It returns the desk by calling the function get_desk_assets specified here
ERPNext Mobile reference code:

I would want to route to a custom page within webview rather than desk

I have tried the following by adding them to the

1. frappe.local.response[“home_page”] = “/custom_webpage"

2. frappe.local.flags.redirect_location = '/custom_webpage'
   raise frappe.Redirect

None of this works
Would appreciate any ideas