"Backspace" button is working properly only in "Add new game" form

[juliet86]

User is able to use "Backspace" button only at the "Add new Game" page.
Steps:

1. Open "Add new game" form
2. Push "Backspace"
   Expected result: User goes back to the "Show all games" page
   Actual result: User goes back to the "Show all games" page
3. Open "Edit" or "Delete" form
4. Push "Backspace"
   Expected result: User goes back to the "Show all games" page
   Actual result: User stays at the same page