cy.getCookie('sid').should('exist') failed.

[mrdulin]

My login process is similar with this example

The first test passes but the second test case always fails at first run.

/auth-service/signin API will return the Set-Cookie response header and 302 HTTP status code.

describe('HTML form submission with cy.request', () => {
    it('check login and redirect', () => {
      cy.request({
        url: 'https://web.qa-xx.com/auth-service/signin',
        method: 'POST',
        form: true,
        body: {
          username,
          password,
        },
        followRedirect: false,
      }).then((res) => {
        expect(res.status).to.equal(302);
        expect(res.redirectedToUrl).to.equal('https://web.qa-xx.com/dashboard/');
      });
    });

    it('check cookie exist', () => {
      cy.request({
        url: 'https://web.qa-xx.com/auth-service/signin',
        method: 'POST',
        form: true,
        body: {
          username,
          password,
        },
      });

      cy.getCookie('sid').should('exist');
      cy.getCookie('uid').should('exist');
    });
  });

E2E Test result:

cypress.config.ts:

import { defineConfig } from 'cypress';

export default defineConfig({
  e2e: {
    setupNodeEvents(on, config) {
      // implement node event listeners here
    }
  },
});

Package version:

"cypress": "^15.1.0"