cypress-open-child-window

Example using window.open to "pop" application and test it from Cypress test runner. This allows top === self and bypasses what many windows do to frame-bust, see cypress/issues/886.

Read Cypress using child window.

See cypress/integration/spec.js, but basically there is a custom command cy.openWindow that uses window.open to create a child window linked back synchronously to the opener window. This still lets Cypress work.

To execute (note, requires Chrome browser):

npm run dev

Time traveling debugger should still work - and it shows the snapshots in the iframe, not in the child window