Cypress runner viewport shrinks after cy.visit()

[matt-vrtula]

After a simple visit, the runner viewport suddenly shrinks in size and it stays like that when I run other tests:

The test runs fine till the end, but it is very uncomfortable to continue working. I´ve attached a screenshot of the result. It happens consistently for me under these conditions:

• I use a mobile-sized viewport for my test, for example cy.viewport('iphone-x'). When using desktop-sized viewports (width>589px), there is no problem.
• It happens only on certain subpages of my application
• Sometimes it happens directly after visit and sometimes the test passes and it happens after I move the mouse over the viewport.

What I have tried so far with no result:

• use of a mobile user-agent in visit command
• different mobile viewports

The minimal reproducible example in my case is:
beforeEach(() => { cy.viewport('iphone-x') }) it('Thhis is it', () => { cy.visit('https://www.kimbino.sk/101-drogerie/101-drogerie-letak-od-stredy-04-09-2024-2794364/') })

Just wait a few seconds after the test passes and then move the mouse around.
The current Cypress version is 13.12.0, running on Windows 10. This issue persists over 20 months.