Unable to switch to parent window in selenium Webdriver

Hi Testers
I am practising Selenium 2.0 on Salesforce website.
Eclipse is giving an error when i Switch from child to parent window..

Exception in thread "main" org.openqa.selenium.WebDriverException: '[JavaScript Error: "a is undefined"

I am using function
driver.switchTo().defaultContent();

I have tried several ways to switch from child window to parent window but everytime it fails to switch to parent window and gives the same error...

Which version of Selenium are you using?

Hi,

Store the main windowname in a string as below.

//String winHandleBefore= driver.getWindowHandle();

Then switch to child window

http://driver.switchTo().window("windowname");
//perform some operations

switch to parent window again

// driver.switchTo().window(winHandleBefore);


Hope it hepls.If you are still facing the issue let us know.

Thanks,
Jeeva