I found this: Access a new window - cypress.io
I think it is a begining of something that might solve my problem. Though, a it doesn't solve my problem entirely.
Summary:
I have to run cypress test on a webapp. This webapp behaves this way:
http://urlofwebsite:1234/blabla/token -> open a new window
New window is at http://urlofwebsite:1234/blabla/page
The thing is, if I do something like cy.visit("http://urlofwebsite:1234/blabla/page")
doesn't work. It opens new window the same way it did in the previous case.
That's why, I want to get the instance of this new window to run my test.
I don't know if I've been clear enough. Don't hesitate to question me (except Why is it made that way, because I don't know, I didn't do it).
Thank you all!