STR:

Capture a profile of

http://clb.confined.space/dump/PolyStyleMedievalVillage_20200418_065906_wasm_release_cpuprofiler/

It is a bit difficult to do due to bug #150, but once one manages to do a capture, there is something about viewing the capture that makes Spector.js hang altogether:

http://clb.confined.space/dump/SpectorJsHangsWhenViewingProfile.mov

Waiting for the UI to become responsive does not work, but the hang keeps occurring.