With Cypress, you can easily create tests for your modern web applications, debug them visually, and automatically run them in your continuous integration builds.

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1. You might be over complicating your test by visiting all these different URLs in one `it` block? Are you able to separate out the test into muliple smaller `it` blocks, each with a more specific validation? 

2. Your example code comments say that `cy.visit('https://mysite.com/item'` doesn't work but you have already visited `https://mysite.com` and that does work. But they have the same URL origin. I suggest you try to simplify your code using 2 URLs with different origins and get `cy.origin` working there first.