From reading the comments, this is for use in scenarios where you connect to a guest wifi network, but aren't automatically taken to their authentication page to get access to the internet.
By trying to connect to a http:// website instead of https://, the redirect will work, allowing you to authenticate your device and access the internet.
As I haven't been inside a coffee shop or any public wifi scenario in over a year I was trying to remember what the use case was for this....