cypress: Cannot read properties of undefined (reading 'cookies')

Current behavior

Not sure why, but every now and again multiple members of our team get the error above in the Cypress test window along with this stack trace:

TypeError: Cannot read properties of undefined (reading 'cookies')
    at <embedded>:4613:284999
From previous event:
    at $Cypress.automation (http://e2e.localhost:4000/__cypress/runner/cypress_runner.js:147779:12)
    at Object.getCookies (http://e2e.localhost:4000/__cypress/runner/cypress_runner.js:140904:29)
    at Object.clearCookies (http://e2e.localhost:4000/__cypress/runner/cypress_runner.js:140910:77)
    at Object.clearCurrentSessionData (http://e2e.localhost:4000/__cypress/runner/cypress_runner.js:140901:127)
    at http://e2e.localhost:4000/__cypress/runner/cypress_runner.js:140354:110

looks like something in the cypress runner that clears session between tests is failing.

Desired behavior

No response

Test code to reproduce

it’s inconsistent when it happens, so it’s hard for me to make a clear repro. But here is our cypress config:

import { defineConfig } from "cypress";
import { gql } from "@apollo/client";

import { makeAdminApolloClient } from "./src/utility/admin-gql-client";
import { readPdf } from "./src/utility/read-pdf";

export default defineConfig({
  hosts: {
    // normally, cypress doesn't work with subdomains of localhost; this makes
    // it work
    // https://github.com/cypress-io/cypress/issues/1488#issuecomment-396435553
    "*.localhost": "127.0.0.1",
  },
  e2e: {
    projectId: process.env.CYPRESS_PROJECT_ID,
    baseUrl: process.env.CYPRESS_BASE_URL,
    fileServerFolder: ".",
    fixturesFolder: "./src/fixtures",
    specPattern: "./src/integration/**/*.cy.{js,jsx,ts,tsx}",
    modifyObstructiveCode: false,
    supportFile: "./src/support/e2e.ts",
    video: true,
    screenshotsFolder: "./screenshots",
    videosFolder: "./videos",
    chromeWebSecurity: false, // allows to go cross-origin
    retries: 3,
    defaultCommandTimeout: 10_000,
});

Cypress Version

12.9.0

Node version

16.16.0

Operating System

macOS 13.2.1

Debug Logs

No response

Other

No response

About this issue

Original URL
State: open
Created a year ago
Reactions: 1
Comments: 32 (14 by maintainers)

Most upvoted comments

We see this error occasionally when running our component tests in CI (Jenkins).

Cannot read properties of undefined (reading 'cookies')  Because this error occurred during a `before all` hook we are skipping all of the remaining tests.

TypeError: Cannot read properties of undefined (reading 'cookies')

Because this error occurred during a `before all` hook we are skipping all of the remaining tests.
    at <embedded>:4649:284999
    at process.processTicksAndRejections (node:internal/process/task_queues:96:5)

albinohrn on Apr 20, 2023