[Captive-portals] Not good....

[David Bird <dbird@google.com>]

Wi-Fi at Chicago O'Hare Airport defeating Chome captive portal check. They also require using their DHCP assigned DNS (why don't they just DNAT DNS to their server, I don't know -- chilli will do that :)

It is impossible for my to get the portal using Android... 

GET /generate_204 HTTP/1.1
Host: captive-portal-check.appspot.com
Connection: keep-alive
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36
Accept: /
Accept-Encoding: gzip, deflate, sdch
Accept-Language: en-US,en;q=0.8

HTTP/1.1 302 Found
Location: https://via.boingohotspot.net/login
Connection: close
Content-Type: text/html; charset=utf-8
Content-Length: 343


<!--<?xml version="1.0" encoding="UTF-8"?><WISPAccessGatewayParam xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://www.acmewisp.com/WISPAccessGatewayParam.xsd"><Redirect><LoginURL>https://via.boingohotspot.net/login</LoginURL><MessageType>100</MessageType></Redirect></WISPAccessGatewayParam>-->