Demonstrates a bug in (probably?) wasm-bindgen where having too many attributes on a sycamore::builder::ElementBuilder will result in a module that wasm-bindgen will think doesn't have a start section. Without a start section, __wbindgen_start() isn't generated so finalizeInit in the resulting javascript module will never call the Rust main. To reproduce, use bash ./repro.sh. This generates 2 javascript modules at target/wasm-bindgen/debug/wasm-bindgen-bug-bad.js good target/wasm-bindgen/debug/wasm-bindgen-bug-good.js. The -bad file will not container a call to wasm.__wbindgen_start while the -good one will.