Selenium does not support basic proxy authentication out-of-the-box. It is possible to create an extension that handles proxy authentication and add the extension to the browser, but if you wish to run the driver headless, extensions are not loaded. That's why I created this library.
The workaround is to create a local proxy server (this simple library uses Titanium-Web-Proxy) and handle the proxy authentication from there.
- Create the local proxy server
var proxyServer = new SeleniumProxyServer();
- Add a new endpoint
var localPort = proxyServer.AddEndpoint(new ProxyAuth("123.123.123.123", 80, "prox-username1", "proxy-password1"));
- Use the endpoint's port when initializing the driver
options.AddArgument($"--proxy-server=127.0.0.1:{localPort}");
public void Test() { // Create a local proxy server var proxyServer = new SeleniumProxyServer(); // Don't await, have multiple drivers at once using the local proxy server TestSeleniumProxyServer(proxyServer, new ProxyAuth("123.123.123.123", 80, "prox-username1", "proxy-password1")); TestSeleniumProxyServer(proxyServer, new ProxyAuth("11.22.33.44", 80, "prox-username2", "proxy-password2")); TestSeleniumProxyServer(proxyServer, new ProxyAuth("111.222.222.111", 80, "prox-username3", "proxy-password3")); while (true) { } } private async Task TestSeleniumProxyServer(SeleniumProxyServer proxyServer, ProxyAuth auth) { // Add a new local proxy server endpoint var localPort = proxyServer.AddEndpoint(auth); ChromeOptions options = new ChromeOptions(); //options1.AddArguments("headless"); // Configure the driver's proxy server to the local endpoint port options.AddArgument($"--proxy-server=127.0.0.1:{localPort}"); // Optional var service = ChromeDriverService.CreateDefaultService(); service.HideCommandPromptWindow = true; // Create the driver var driver = new ChromeDriver(service, options); // Test if the driver is working correctly driver.Navigate().GoToUrl("https://www.myip.com/"); await Task.Delay(5000); driver.Navigate().GoToUrl("https://amibehindaproxy.com/"); await Task.Delay(5000); // Dispose the driver driver.Dispose(); }