Intermittent Page.goto() timeout error

[imiric]

Running the same test script from #510, on current main (db80f94), and mostly only reproducible in the Cloud, we sometimes see the following error:

navigating to "https://test.k6.io/": timed out after 30s
	at reflect.methodValueCall (native)
	at file:///tmp/Y79rjo/script.js:38:35(27)
	at native
 executor=constant-vus scenario=default		test_run_id: 141249

We addressed the most frequent navigation race condition in #480, and while this one is not that frequent, we still see it occasionally in Cloud test runs. The effect is that there's a pause in execution while we wait for the default 30s timeout, as documented in #502, and the iteration ends abruptly.

[imiric]

After #555, we no longer see this issue in the Cloud 🎉 So I'm closing this.