Safari driver hangs while running automation test - selenium-webdriver

Question

Safari Version: 11.0.2
MAC Version: 10.12.6 Mac OS Sierra
selenium-java Version: 3.5.3
Language: JAVA
Whenever I am running a selenium test on Safari Driver it hangs after running few steps (could not find specific pattern). Same test run file on IOS/Safari, Android/Chrome, MAC/Chrome.
Works fine you run test in debug/step by step. What could be the reason Safari not responding?

Answer 1

Here is code to simulate the issue. Safari hangs and could not click 'Continue Shopping'
public static void main(String[] args) {
SafariOptions safariOptions = new SafariOptions();
safariOptions.setUseCleanSession(true);
// safariOptions.setUseTechnologyPreview(true);
DesiredCapabilities safariCapabilities = DesiredCapabilities.safari();
safariCapabilities.setJavascriptEnabled(true);
safariCapabilities.setAcceptInsecureCerts(true);
safariCapabilities.setPlatform(Platform.MAC);
safariCapabilities.setCapability("platformName", Platform.MAC);
safariCapabilities.setVersion("11.2");
safariCapabilities.setBrowserName("safari");
safariCapabilities.setCapability(SafariOptions.CAPABILITY, safariOptions);
WebDriver safariDriver = new SafariDriver(safariCapabilities);
safariDriver.manage().window().maximize();
safariDriver.manage().timeouts().implicitlyWait(15, TimeUnit.SECONDS);
safariDriver.get("https://www.shoppersstop.com/");
waitFor(safariDriver, ExpectedConditions.elementToBeClickable(By.xpath("//a[#href='cart']")));
safariDriver.findElement(By.xpath("//a[#href='cart']")).click();
waitFor(safariDriver, ExpectedConditions.elementToBeClickable(By.xpath("//a[text()='Continue Shopping']")));
safariDriver.findElement(By.xpath("//a[text()='Continue Shopping']")).click();
}
public static <T> T waitFor(WebDriver safariDriver, ExpectedCondition<T> condition) {
return new FluentWait<WebDriver>(safariDriver).withTimeout(30, TimeUnit.SECONDS)
.pollingEvery(500, TimeUnit.MILLISECONDS).until(condition);
}

Answer 2

Even the subj is dead I had the similar issue and the solution was to set
"Turn off display after" setting to "Never"
in
"Apple" > "Preferences" > "Energy Saver"