Prevent "Confirm Form Resubmission" when pressing back button after incorrect login

Yii 2.0 General Discussions
#1

I am using Yii 2 Advanced and when I type incorrect login details, I get “Incorrect login details” alert message. But when I click back button, I get " Confirm Form Resubmission" box in chrome. How can I prevent ? I want to show same error message when user goes back.

#2

When you get the message, after user click the alert redirect to the same page to clear stuffs.
But why is that a problem? If user needs to go to some page then after alert redirect to that page