cross_rust_wasm test:

bundler:Suitable for loading in bundlers like Webpack
web:Directly loadable in a web browser
nodejs:	Loadable via require as a Node.js module
no-modules:	Like web, but older and doesn't use ES modules

https://rustwasm.github.io/docs/wasm-bindgen/examples/without-a-bundler.html

https://rustwasm.github.io/docs/wasm-bindgen/reference/deployment.html