title: The webpage at localhost might be temporarily down or it may have moved permanently to a new address
body: <p>I am currently developing website and sometimes when ever I reload my page browser giving me error "The webpage at localhost might be temporarily down or it may have moved permanently to a new address." It occurs when I add a lot of javascript and css animation in index.php. My question is what is the cause of this error?and how to get rid of it?</p>