org.openqa.selenium.UnhandledAlertException: unexpected alert open

Question

I am using a Chrome Driver and trying to test a webpage.

Normally it runs fine, but sometimes I get exceptions:

 org.openqa.selenium.UnhandledAlertE         


        

Answer 1

Following is working for me

    private void acceptSecurityAlert() {

    Wait wait = new FluentWait(driver).withTimeout(10, TimeUnit.SECONDS)          
                                                            .pollingEvery(3, TimeUnit.SECONDS)          
                                                            .ignoring(NoSuchElementException.class);    
    Alert alert = wait.until(new Function() {       

        public Alert apply(WebDriver driver) {

            try {

                return driver.switchTo().alert();

            } catch(NoAlertPresentException e) {

                return null;
            }
        }  
    });

    alert.accept();
}