wdym. They uses some extension called richland 2 Agent and they use something called cros-student.pac
When I open it, it shows all fo these commands
function FindProxyForURL(url, host)
{
url = url.toLowerCase();
host = host.toLowerCase();
var proxyhosts = new Array(
"[richland2.org](https://richland2.org)",
"[accounts.google.com](https://accounts.google.com)",
"[accounts.youtube.com](https://accounts.youtube.com)",
"[clients.google.com](https://clients.google.com)",
"[clients1.google.com](https://clients1.google.com)",
"[clients2.google.com](https://clients2.google.com)",
"[clients3.google.com](https://clients3.google.com)",
"[clients4.google.com](https://clients4.google.com)",
"[clients5.google.com](https://clients5.google.com)",
"[clients6.google.com](https://clients6.google.com)",
"[clients7.google.com](https://clients7.google.com)",
"[clients8.google.com](https://clients8.google.com)",
"[clients9.google.com](https://clients9.google.com)",
"[cros-omahaproxy.appspot.com](https://cros-omahaproxy.appspot.com)",
"[dl.google.com](https://dl.google.com)",
"[dl-ssl.google.com](https://dl-ssl.google.com)",
"[googleapis.com](https://googleapis.com)",
"[gvt1.com](https://gvt1.com)",
"[gvt2.com](https://gvt2.com)",
"[gvt3.com](https://gvt3.com)",
"[omahaproxy.appspot.com](https://omahaproxy.appspot.com)",
"[safebrowsing-cache.google.com](https://safebrowsing-cache.google.com)",
"[safebrowsing.google.com](https://safebrowsing.google.com)",
"[gstatic.com](https://gstatic.com)",
"[tools.google.com](https://tools.google.com)",
"[pack.google.com](https://pack.google.com)",
"[googleusercontent.com](https://googleusercontent.com)",
"[chrome.google.com](https://chrome.google.com)",
"[apis.google.com](https://apis.google.com)",
"[gweb-gettingstartedguide.appspot.com](https://gweb-gettingstartedguide.appspot.com)",
"[play.google.com](https://play.google.com)",
"[books.google.com](https://books.google.com)"
);
// If browsing to localhost, always return direct
if (localHostOrDomainIs(host, "[127.0.0.1](https://127.0.0.1)")) {
return "DIRECT";
}
// Return direct for matched domains/hosts
for ( var i=0; i<proxyhosts.length; i++ ) {
var value = proxyhosts[i];
if ( dnsDomainIs(host, “.”+value) || host==value ) {
return “DIRECT”;
}
}
// Return proxy for all other http and https sites
if (url.substring(0,4) == "http") {
return "PROXY [204.116.214.20:10000](https://204.116.214.20:10000)";
}
return "DIRECT";
}// If browsing to localhost, always return direct
if (localHostOrDomainIs(host, "[127.0.0.1](https://127.0.0.1)")) {
return "DIRECT";
}
// Return direct for matched domains/hosts
for ( var i=0; i<proxyhosts.length; i++ ) {
var value = proxyhosts[i];
if ( dnsDomainIs(host, “.”+value) || host==value ) {
return “DIRECT”;
}
}
// Return proxy for all other http and https sites
if (url.substring(0,4) == "http") {
return "PROXY [204.116.214.20:10000](https://204.116.214.20:10000)";
}
return "DIRECT";
}