Cypress: `clearCookie` not working anymore in 3.5.0 under certain baseUrls

[jweingarten]

Our code used to do exactly what the documentation states:

cy.setCookie('foo', 'bar')
cy.clearCookie('foo')
cy.getCookie('foo').should('be.null')

This works with 3.4.1 and started failing with 3.5.0.

Since there are tickets about clearCookies not working this was the only way we actually could delete a specific cookie. Now even that doesn't work any longer.

[jennifer-shehane]

Hey @jweingarten, the example you provided works in 3.5.0 in Chrome and Electron when run during cypress open in my MacOS Mohave OS.

Please provide an entirely reproducible example - also, there is an open cookies issue involving 3.5.0 here - https://github.com/cypress-io/cypress/issues/5432 ensure your issue is not related to this one also.

[jweingarten]

Ok I found what you need to reproduce .... and that is basically setting a baseUrl in cypress.json.

Here the exact steps:

• mkdir foo
• cd foo
• npm install cypress
• mkdir cypress/integration
• vi cypress/integration/sample_spec.js
• copy/paste the following into sample_spec.js

describe('Load Main Dashoard after Login', function() {
    context('Login', function() {
      it('The Main Dashboard should be able to load now', function() {
        cy.setCookie('foo', 'bar')                                                
        cy.clearCookie('foo')
        cy.getCookie('foo').should('be.null')
      });
    });
}); 

• vi cypress.json
• copy/paste the following into cypress.json

{
  "baseUrl":"https://www.google.com"
}

• node_modules/cypress/bin/cypress open
• click sample_spec.js

Result: AssertionError: expected { Object (name, value, ...) } to be null

[jennifer-shehane]

@jweingarten Thanks! I can reproduce this after setting a baseUrl in the cypress.json

I also confirmed this was introduced in 3.5.0

3.4.1 DEBUG cookies

3.5.0 DEBUG cookies

[ianldgs]

Not only clearCookie, but apparently lots of things related to cookies and baseUrl.

Our tests have a fast login and logout implementation, like the docs show, that doesn't work anymore after updating to 3.5.0.

cy.request({
  method: 'POST',
  url: '/api/auth',
  body: {
    email,
    password,
  }
})

cy.getCookie('session').should('exist')

[ianldgs]

Related: #3221 (might be fixable together)

[borecz]

I am having the same.

[flotwig]

@ianldgs This is the issue you're having, there is already a fix in develop to be released soon: #5432

[flotwig]

cy.setCookie('foo', 'bar')
cy.clearCookie('foo')
cy.getCookie('foo').should('be.null')

This works in some cases and fails in others (I've only tested in Electron, but results should be the same in Chrome). Here are the baseUrls I've tested:

• FAILS: https://www.bar.foo.com
• FAILS: http://www.bar.foo.com
• FAILS: https://www.bar.foo.com:2323
• FAILS: http://www.bar.foo.com:2121
• PASSES: http://localhost
• PASSES: https://localhost
• PASSES: http://127.0.0.1
• PASSES: https://127.0.0.1
• PASSES: no baseUrl

So the issue seems related to setting cookies on a FQDN.

I have written some automated tests for this here: #5478

I'll continue working on fixing this in that PR.

[dwelle]

Not sure if it's related, but I couldn't get cypress to clear a cookie on a .-leading domain.

[flotwig]

Thanks for the additional info!

There were some huge changes in how cookies are handled in Cypress 3.5.0. We went from a split approach (using Electron cookies APIs to control Electron and Chrome Extension API to control Chrome) to a different, unified approach (Chrome DevTools Protocol to control both Electron and Chrome). Once we get the initial bugs ironed out, this will hopefully be a much more reliable and maintainable approach.

[PetMou]

Additional: we use DELETE requests to reset test data. The GET requests still work, but the DELETE's don't work any more since 3.5.0. The requests now return a 403 status

[cypress-bot[bot]]

The code for this is done in cypress-io/cypress#5478, but has yet to be released.
We'll update this issue and reference the changelog when it's released.

[cypress-bot[bot]]

Released in 3.6.1.