Web-sys, intelliJ, GotoClass

I have this 10k-100k rust/stdweb app. I'm interested in trying out https://rustwasm.github.io/wasm-bindgen/api/web_sys/index.html

One issue I'm running into is the following. With stdweb, I can put mouse cursor over a stdweb class, hit GotoClass, and it will jump me to the right struct/enum/function in stdweb source.

In web_sys, possibly due to every class being behind a feature, it's not obvious to me how to do this. Does anyone have "IntelliJ/GotoClass" working in a web_sys project?

In particular, the IntelliJ actions I'm referring to are:

GotoImplementation
GotoClass
GotoSymbol