Cypress: Cannot set property response of undefined

[bahmutov]

Cypress v5.4.0 but might happen earlier

Reproducible example in https://github.com/cypress-io/cypress-example-recipes

Spec examples/stubbing-spying__route2/cypress/integration/image-spec.js

Test

  it('redirects static image', () => {
    // instead of serving an image from a fixture
    // we can redirect the request for the image
    // to another route
    cy.route2({
      method: 'GET',
      url: '/images/tiger.jpg',
    }, (req) => {
      // /__root/* is a special URL that can serve a file from the
      // project's root. Normally this is used during bundling
      // but here we are using it to serve another image
      req.redirect('/__root/cypress/fixtures/roo.jpg')
    })

    cy.visit('/pics.html')
  })

Error screenshot

Last stack frame

request is undefined

Previous stack frame

• checks if request is undefined and calls sendContinuationFrame (where it crashes trying to set request)

[msmps]

@bahmutov

I can also confirm! 🐛

Bumped into this issue in v5.3.0 and v5.4.0 when using .route2 attempting to add custom headers to all requests!

[cypress-bot[bot]]

The code for this is done in cypress-io/cypress#8965, but has yet to be released.
We'll update this issue and reference the changelog when it's released.

[cypress-bot[bot]]

Released in 5.5.0.

This comment thread has been locked. If you are still experiencing this issue after upgrading to
Cypress v5.5.0, please open a new issue.