This crate builds for `wasm32-unknown-unknown` and possibly other WASM targets. I propose adding a build step to [.github/workflows/rust.yml](https://github.com/pulldown-cmark/pulldown-cmark/blob/master/.github/workflows/rust.yml) to ensure new changes do not break WASM builds. E.g. ```bash cargo build --target wasm32-unknown-unknown ``` I will submit a PR if the maintainers are happy to consider it.