Looks like the new version of windows google chrome v:86.0.4240.18386.0.4240.183 broke observable. error "because it violates the following Content Security Policy directive - script-scr-elm
It breaks when trying to load the likes of D3.
https://observablehq.com/@observablehq/module-require-debugger helps when the full path is used.
Same with importing cells from other notebooks, but fukk url helps again CORS error when importing Leaflet across notebooks
All firefox works fine.