Running cypress GUI in <iframe>

[OliverLjung]

Hi!

This is my first time trying Cypress and I have been experimenting for the last 10 hours or so; very cool stuff 👨‍💻
I had an idea that I would create a service that runs my cypress tests. My idea is to:

1. Build a webapp (I use python flask for now)
2. Create and expose an endpoint that takes a cypress script in plain text as input (http)
3. From the app, create the *.cy.js file with the input cypress script as content
4. Run the cypress code. I do this with pythons asyncio.create_subprocess_shell like this

async def run_cypress(port, spec):
    await asyncio.create_subprocess_shell(
        cmd=f'npx cypress run --headed --no-exit --port {port} --browser chrome --spec {spec}'
    )

5. return the template which contains my <iframe>

So far, steps 1-4 work and I can see my test example (spec) running as it should.
The problem I want to solve is how to access Cypress GUI in the <iframe>.

I have tried playing around with the different CLI options and tried to access it with localhost:port which has only come this far..

Am I trying to do something that shouldn't be possible?
Any help and/or pointer are greatly appreciated 😄