UI Extension DevServer returns 404 not found

Question

I am trying to use the development server shipped with UI Exensions react app, when running the server and open https://localhost:3000/ui in the browser I got HTTP Error 404. The requested resource is not found.

I added https://localhost:3000/ui/signin-oidc to allowed redirects url for Tridion Sites Experience Space in Access Management, I've also added http://domainname:3000/ui/signin-oidc ( domainname of the CMS ) based on the accepted answer here GUI extensions for Experience Space - Not working on Local

Are there more required config to make this work?

Answer 1

We've recently updated documentation for extension examples. It now includes steps for https environments. Can you check it and see if it helps?

https://github.com/RWS/tridion-sites-extensions-examples/tree/main/sites-10-ux-update

In general, if you see 404, it means you are reaching wrong environment.