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I am automating tests using selenium chromewebdriver 3.7. Whenever I lauch the site, I get a certificate selection popup like the one below

However I am not able to click on the OK button. These are the options I have tried

 //I have tried getWindowHandle like this  
 String  handle= driver.getWindowHandle();
        this.driver.switchTo().window(handle);

//I have alos tried switching and accept
 driver.switchTo().alert().accept();

//I have also tried to force the enter key like this
 robot.keyPress(KeyEvent.VK_ENTER);
 robot.keyRelease(KeyEvent.VK_ENTER);

 // I also tried this way
 Scanner keyboard = new Scanner(System.in);
 keyboard.nextLine();

All my trials have failed. How can I click on OK on this popup window? This is the closest solution I found which is not working Link here

Answers

I had the same problem and I was able to solve it by using the robot, creating function for the url and passing it to a different thread.

    Runnable mlauncher = () -> {
    try {

      driver.get(url);
     } catch (Exception e) {
          e.printStackTrace();
       }
    };

public void myfunction {
 try {

   Thread mthread = new Thread(mlauncher);
   mthread.start

  robot.keyPress(KeyEvent.VK_ENTER);
  robot.keyRelease(KeyEvent.VK_ENTER);

 } catch (Exception e) {
          e.printStackTrace();
       }