Values set from command for the viewport do not override values set in configuration file

[yam-exerp]

Current behavior

After changing the viewport values (using cy.viewport(600,400) command), I tried to retrieve these values from Cypress.config('viewportWidth') , but it keeps returning the default configuration, see code below

cy.viewport(600, 400)
const viewportWidth = Cypress.config('viewportWidth')
cy.task('log', `viewportWidth: ${viewportWidth}`) // viewportWidth: 1000

Desired behavior

Cypress should provide a method that gives back the current viewport width and height.

Test code to reproduce

Here is a repo where to reproduce the failing test

https://github.com/yam-exerp/cypress-test-tiny

Cypress Version

14.0.0

Node version

v18.20.4

Operating System

MacOS Version 15.0.1

Debug Logs

Other

It seems that this issue was raised before but was closed because of a long period of inactivity

#22688
https://stackoverflow.com/questions/75115796/why-is-cy-viewportwidth-height-not-updating-screen-size