I seem to have the exact same problem as the original poster. I’ve got a Gatsby app and here’s the content of _redirects, which is saved at the root of my project:
# Redirect default Netlify subdomain https://jobcast-www.netlify.app/* https://www.jobcast.net/:splat 301!
Going to https://jobcast-www.netlify.app/ doesn’t redirect to the custom domain. I’ve tried this in multiple browsers and multiple operating systems. I’ve also tried it using http tools such as Fiddler and Curl.
Here’s a sample request ID:
@luke, can you please investigate? Thanks in advance!