cy.visit('/404')
//=> Test fails
cy.visit('/404', {failOnStatusCode: false})
//=> Test passes but does not test the HTTP code was 404
cy.request({url: '/404', failOnStatusCode: false}).its('status').should('equal', 404)
cy.visit('/404', {failOnStatusCode: false})
//=> Test passes, tests that the HTTP code was 404, and tests page was visited