4.12.0 Regression: Cypress.dom.isVisible change in behaviour

[ElisaDellaC]

We have a scrollable dropdown list and our test wants to verify how many elements are visible when opening the list: to do so we use Cypress.dom.isVisible

Until Cypress version 4.11.0 our test were working as expected: Cypress.dom.isVisible was only detecting as visible the elements of the list that were visible on screen when opening the list and as not visible the ones present in the list but for which you need to scroll down in order to see them displayed on screen.

As from Cypress version 4.12.0, when opening the dropdown list all elements in the list are detected as visible.

If this is a wanted change in behaviour, could you please advise on a workaround to have our test working?

Here a reproduction scenario:
https://github.com/rosahealth/cypress-tiny-test-fork

Many thanks!

[jennifer-shehane]

I can recreate this behavior using the example in https://github.com/rosahealth/cypress-tiny-test-fork This is a regression in 4.12.0

This was introduced in this PR: #8095 I git bisected and saw the issue was introduced in this commit 298612b

4.11.0

4.12.0

[cypress-bot]

The code for this is done in cypress-io/cypress#9412, but has yet to be released.
We'll update this issue and reference the changelog when it's released.

[bahmutov]

released in v6.1.0