How do I use invoke-webrequest with basic authentication header in PowerShell? or What's the correct

OP here—huge thanks to everyone! The `-Authentication Basic` flag was the magic fix. No idea why I missed that in the docs.

Still weird that the manual header didn’t work, but hey, it’s running now.

Side note: Tried Postman like someone suggested, and yeah, it confirmed the server’s fussy about casing. Learned my lesson!

Thanks again, y’all saved my sanity.