developers/design-documents/network-stack/proxy-settings-fallback/ie-fallback.dot

digraph Fallback {

  subgraph cluster_automatic {
    label="Automatic settings";
    style=dotted;

    WPAD [label="WPAD (Automatically detect)"];
    CustomPac [label="Custom PAC script"];
  }

  subgraph cluster_manual {
    label="Manual settings";
    style=dotted;

    ProxyForAllSchemes [label="Single proxy server for all schemes"];
    SchemeSpecific [label="Proxy server per URL scheme"];
    Socks [label="SOCKS proxy server"];
  }

  Direct;

  WPAD -> CustomPac [style=bold, color="blue"];
  CustomPac -> ProxyForAllSchemes [style=bold, color="blue"];
  ProxyForAllSchemes -> SchemeSpecific;
  SchemeSpecific -> Socks;
  Socks -> Direct;
}