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With a captive portal, your first HTTP request will be redirected to the network's login page or whatever they have. Many large sites now use HTTPS and HSTS and

With a captive portal, your first HTTP request will be redirected to the network's login page or whatever they have. Many large sites now use HTTPS and HSTS and if you visit them once, they will always (or until the max-age header expires) be loaded over HTTPS by your browser. As a result, many people will be unable to see the network's login page. If you are in this situation, you can load neverssl.com once, log in to the network, then browse normally.

bogomipz 10y ago
Ah OK thanks for the explanation. I guess they don't want to redirect HTTPS traffic as well for obvious reasons.
- GrayShade 10y ago
  I'm sure they'd like to, but you can't do that over HTTPS without installing a certificate on the system. Many companies do that for HTTPS interception.