404 Implicit Callback GET on login - React SPA

Hi, we’re getting a console GET Error on the implicit callback virtual route. This is happening only on login in a staged environment, not locally. While not a breaking change, the error isn’t ideal.


We’re using an Azure environment hosted as a static website via a storage account.
I’ve set a base href on the document to “/” and also set any errors to go to index.html, as well as the default path is index.html.

If you’re getting a 404, it means your SPA configuration is not complete on your web server. You should never get a 404 from this route if you have it setup correctly. Rather, it should route the request to your index.html so React can handle it.

1 Like

Good to know. I’ll look further into our web server setup. Thank you for the quick response.