Stage App not prompting for IDCS Access

Summary: Hello, I created redwood app in PaaS solution and I observed that the app when staged does not redirect to IDCS page and launches the HTML of the landing page in the main flow.

Content (required): As a work around, we have updated the security at vbredwoodapp to require the app to ask for IDCS access. Is it expected behavior?

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):