Comment 3 for bug 1039042
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| Cassidy James Blaede (cassidyjames) wrote Re: Handle Train/Airport Wifi | #3 |
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0e1f616
(Get the code!)
These are called captive portals and are really easy to detect. When you detect a new wireless connection, try and hit a URL with a 204 response (obviously something known ahead of time). If you get anything but a 204, you know you've hit a captive portal (or something similar) and present the "next step" of configuring the wireless: signing in to the wireless network.
Android does something similar and it works really well on a technical level, though it doesn't do it soon/obviously enough so I guess users miss the norification.