我正在使用Cypress运行测试，我发送了一封电子邮件到另一封，然后登录第二封电子邮件，看看电子邮件是否已发送。不幸的是，在下面代码的底部，Cypress中的网页变成了空白。你知道为什么吗？我能做些什么来弥补？

it('Send email', function () {
    cy.visit('https://login.yahoo.com/?.src=ym&pspid=159600001&activity=mail-direct&.lang=en-GB&.intl=uk&.done=https%3A%2F%2Fuk.mail.yahoo.com%2Fd');
    cy.get('.phone-no').type('//password here{enter}');
    cy.get('.password').type('//password here{enter}');
    Cypress.on('uncaught:exception', (err, runnable) => {
        return false
    })
    cy.get('.e_dRA').eq(0).click();
    Cypress.Commands.add('typeTab', (shiftKey, ctrlKey) => {
        cy.focused().trigger('keydown', {
            keyCode: 9,
            which: 9,
            shiftKey: shiftKey,
            ctrlKey: ctrlKey
        })
      })
    cy.get('.select-input').eq(1).type('//email here');
    cy.get('[role="textbox"]').type('Hi Second Email, the weather will be 10oc plus in the following destinations - Regards, First Email');
    cy.get('[title="Send this email"]').click();
    cy.get('[data-test-id="primary-btn"]').click();
    cy.get('._yb_1golm').click();
    cy.get('[data-soa="Sign out of all"]').click();
    cy.get('[data-redirect-params="pspid=[[pspid]]&activity=ybar-signin"]').click();
    cy.get('.pure-button').eq(1).click();
    //Crashes here

});