Scenario:

My baseUrl/Login is something like this https://example.com/#/ and its opening in the 1st tab. After entering the credentials, it is https://example.com/#/verification. I am navigating from here to another url which is opened in 2nd tab. But when it backs to 1st tab, It’s changing to the baseUrl again.

public void visitMailinator() throws InterruptedException {
        ((JavascriptExecutor) driver).executeScript("window.open()");
        ArrayList<String> tabs = new ArrayList<String>(driver.getWindowHandles());
        driver.switchTo().window(tabs.get(1));
        Thread.sleep(10000);
        driver.get(url);
        Thread.sleep(4000);
        first_mail.click();
        Reporter.log("First mail is clicked ", true);
        driver.switchTo().frame("html_msg_body");
        driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
        String verificationToken = token.getText();
        Reporter.log("The Verification Token is: " + verificationToken, true);
        Reporter.log("Browser is Navigating back", true);
        Thread.sleep(6000);

        driver.switchTo().window(tabs.get(0));
        Reporter.log("Browser is Navigated back", true);
        Thread.sleep(5000);
        String link = driver.getCurrentUrl();

        Reporter.log("current Link is: " + link, true);
        
        driver.navigate().to("https://example/#/verification"); // Its not working
        
        code_field.isDisplayed();
        code_field.sendKeys(verificationToken);
        Reporter.log("Verification Key is Entered", true);

    }