Deadlock: TestPageWaitForFunction

[ankur22]

There's a deadlock when running TestPageWaitForFunction when ran with the following command:

go test ./tests -run='TestPageWaitForFunction' -count=100 -timeout=10s

Originally posted by @inancgumus in #636 (review)

This was tested on macOS. The logs for the test run with the deadlock has been attached.

output1.log

[inancgumus]

I fear this is a more overarching problem than TestPageWaitForFunction. For example:

go test ./tests -run='TestWaitForFrameNavigation' -count=100 -timeout=10s

Fails with a timeout as well.

I'm suspicious of Connection.send/recv loops. Just a hunch.