Visiting two different domains from two different tests
The tests in using-task-spec.js store the intermediate URL in the plugins process.
The first test visits the first domain https://www.cypress.io/, finds link to Cypress Test Runner's GitHub repo and saves the href in the plugins process by using cy.task.
The second test gets the URL from the plugins process using cy.task and calls cy.visit(<URL>) and then confirms the GitHub page opens.
The tests in using-file-spec.js save the extracted URL in a local JSON file.