Issue with RunKit and Request library

I’m using express with RunKit and I’m running into an issue where xhttp requests (using the Request library) don’t fire if I call res.send() after calling request(). I realize the request callback won’t fire, but I’m not seeing the request being sent at all.

The odd thing is that around 1 out of 5 times the request will be sent. You can see the issue in this notebook.

Only seeing this issue on RunKit, not when I run the code on my own machine.