Testisolation:false config not working in docker image with Cypress version above v13.4.0

[shaju007]

Current behavior

When cypress test run in docker with cypress docker image 13.5.0, testIsolation:false config is not working. But with cypress docker image 13.4.0, works fine.

Desired behavior

testIsolation:false in cypress docker image above version 13.4.0 should work.

On test retry, default blank page is present instead of home page.

Test code to reproduce

describe('Visit once', function () {
    before(() => {
      cy.visit('/')
    })
   
    it('Assert page title not exist', function () {
      cy.title().should('not.exist')
    })
  
  })

Cypress Version

13.5.0

Node version

20.9.0

Operating System

macOS 15.2

Debug Logs

Other

No response

[shaju007]

Is #28213 the cause of my issue? @mschile
What should happen when a last test retry? It should follow testIsolation: false config, right?
Run the tests on docker container with docker image 13.5.0, issue can be seen reproduced. On retry, second test has blank page issue. But first test doesn't have 'blank page' issue on retry.

describe('Visit once', function () {
    before(() => {
      cy.visit('/')
    })
    it('Assert page title not exist', function () {
      cy.title().should('not.exist')
    })
    it('second test on retry blank page', function () {
      cy.get('body').should('not.exist')
    })
  })

[mschile]

Hi @shaju007 👋🏼, yes, I believe this issue is a duplicate of #28527. The fix will be in the next release. If you'd like, you can try out the prerelease from this commit and verify it fixes your issue. I'm going to close this issue for now.

[shaju007]

Thanks for checking the issue.