How to obtain output like cypress open (headed), but in a CI cypress run (headless) environment?

[richardkmichael]

Running locally with cypress open, helpful network request logging is printed to the terminal:

$ npx cypress open
[21800:1210/142032.907709:ERROR:backend_impl.cc(2020)] Invalid file version or magic
[21800:1210/142040.149506:ERROR:backend_impl.cc(2020)] Invalid file version or magic
GET /__/ 200 1.420 ms - -
GET /__/assets/index.42ea0b38.css 200 1.222 ms - -
GET /__/assets/polyfills.dabe60b8.js 200 1.451 ms - -
GET /__/assets/index.a599e579.js 200 1.496 ms - -
GET /__cypress/runner/cypress_runner.css 200 1.511 ms - -
GET /__/assets/Specs.a1943c65.js 200 2.067 ms - 485
GET /__/assets/Index.4a5d64fb.css 200 2.604 ms - -
GET /__/assets/CreateSpecModal.315eb5ce.css 200 4.456 ms - 368
GET /__/assets/Index.e01cc6ae.js 200 2.020 ms - -
GET /__/assets/ResultCounts.d60076b6.js 200 2.616 ms - -
GET /__/assets/SpecPatterns.a623d5d0.js 200 1.149 ms - -
GET /__/assets/user-outline_x16.d70f166e.js 200 1.100 ms - -
GET /__/assets/CreateSpecModal.418fb924.js 200 2.048 ms - -
GET /__/assets/settings_x16.fe90baec.js 200 1.118 ms - -
[snip]

This has helped me debugging an unexpected 401 response from a server, and it is causing Electron to crash.

I believe this same problem is occurring in a headless CI environment because I see the same Electron crash and stacktrace, but I can't see which requests are being made prior.

How can I obtain the same network request logging in a headless environment? It would be fine to send it to a file, to be kept as an CI job artifact for inspection.

I realize I can set DEBUG=cypress:* or cypress:network:*, etc. but the output is harder to read. (Also on some hosted CI setups, it is easy to exceed job output limits.)

Thank you!