Pixcell / cypress-16611

cypress-16611

Issue: cypress-io/cypress#16611

To reproduce

Everything is done is /app folder as a working directory

• Run npm i
• Run npm run cypress:open
• Select chrome, electron, or edge and run the test file, it works perfectly fine.
• Select firefox, the page never loads because it is not considered a secured context.
• Open Firefox manually (outside of Cypress environment), visit localhost:3000, the page load normally. (If you have closed cypress, you'll need to run npm start before visiting the page)