Not able to switch to iframe using Selenium webdriver

Question

I am trying to click on SIGN IN link which is placed inside the iframe with class attribute "modalIframe". I have been trying for the past two days to find a solution for this but not able to. Any help would be really appreciated.

Code as below

public class Datereader
{

    public static void main(String[] args)
    {
        System.setProperty("webdriver.gecko.driver","C:\\Users\\Madankumar\\Desktop\\Gecko Driver\\geckodriver.exe");
        WebDriver driver=new FirefoxDriver();
        driver.get("https://www.redbus.in/");
        driver.manage().window().maximize();
        driver.findElement(By.xpath(".//div[@class='icon-down icon ich dib']")).click();
        driver.findElement(By.id("signInLink")).click();    
        driver.manage().timeouts().implicitlyWait(3, TimeUnit.SECONDS);
        WebElement iframeElement=driver.findElement(By.xpath("//*[@class='modalIframe']"));
        driver.switchTo().frame(iframeElement);
        driver.findElement(By.linkText("sign in")).click();


    }
}

On running the code I am getting below error:

JavaScript warning: https://cdn-jp.gsecondscreen.com/static/tac.min.js, line 3: unreachable code after return statement

Answer 1

Use Below code for handling iframe.

WebElement iframe = driver.findElement(By.tagName("iframe"));
driver.switchTo().frame(iframe);           //Move inside to the frame.
WebElement body = driver.findElement(By.tagName("body"));
body.click();
driver.findElement(By.linkText("sign in")).click();
driver.switchTo().defaultContent();       //Move outside to the frame.