Looks like something changed with Dev Tools and debugging web workers in Chrome 59. Previously I would see requests from web workers show up in the network tab, and I'd also see javascript files in the sources tab, and I'd be able to run a memory snapshot on a worker. Now, none of those things are appearing.
Is there a new setting that I'm missing?
We use web workers quite heavily so not being able to debug what's going on would be a Very Bad Thing.