Sometime we have to automate websites which shows authentication Pop Up like mentioned below:
In order to automate this PopUp, we will pass UserId and Password via URL:
http://username:password@anytestwebsite.com
Java Script:
String URL = "http://" + username + ":" + password + "@" + anytestwebsite.com;
driver.get(URL);
Alert alert = driver.switchTo().alert();
alert.accept();