Non-deterministic vpython crash

[pmelanson]

Sometimes, especially at startup but even in the first couple seconds, we get this error:

WARNING aio._log:
dropping connection to peer tcp:127.0.0.1:52155 with abort=True: WebSocket opening handshake timeout (peer did not finish the opening handshake in time)

We should investigate if this happens during long runs of the program, and see if we can mitigate (seems to be a vpython internal thing)