Back/forward button does not populate the previous query

[weiseng18]

1. Load /matrix
2. Enter det [[1,2],[3,4]]
   • Page URL is updated with query param det
   • Page is updated
3. Enter rref [[1,2],[3,4]]
   • Page URL is updated with query param rref
   • Page is updated
4. Press back button on browser
   • Page URL is updated with query
   • Page is not updated