I've recently upgraded my Nexus 4 to Android 4.4. Whilst debugging my app, I discovered message W/chromium(14962): [WARNING:proxy_service.cc(888)] PAC support disabled because there is no system implementation
What does it mean ?
Logcat
12-12 17:38:56.726: V/WebViewChromium(14962): Binding Chromium to the main looper Looper{41f91588} 12-12 17:38:56.736: I/chromium(14962): [INFO:library_loader_hooks.cc(112)] Chromium logging enabled: level = 0, default verbosity = 0 12-12 17:38:56.736: I/BrowserProcessMain(14962): Initializing chromium process, renderers=0 12-12 17:38:56.746: W/chromium(14962): [WARNING:proxy_service.cc(888)] PAC support disabled because there is no system implementation
I think you can safely ignore this one. It is kinda hard-coded in Chromium Browser Engine.
If you check Chromium sources (https://chromium.googlesource.com/chromium/src.git/+/master/net/proxy/proxy_service.cc) and see ProxyService::CreateUsingSystemProxyResolver you will find
if (!ProxyResolverFactoryForSystem::IsSupported()) { LOG(WARNING) << "PAC support disabled because there is no " "system implementation"; return CreateWithoutProxyResolver(proxy_config_service, net_log); }
where ProxyResolverFactoryForSystem::IsSupported() is just returning false if you're not on Windows or MacOS
class ProxyResolverFactoryForSystem : public ProxyResolverFactory { //[...] static bool IsSupported() { #if defined(OS_WIN) || defined(OS_MACOSX) return true; #else return false; #endif } };
