Reproduction
At a8cb07c, with wasm-bindgen 0.2.117:
wasm-pack build flare-web --target web --release
node --check flare-web/pkg/flare_web.js
The generated JavaScript fails syntax validation. The Rust documentation example contains:
/// if (id === undefined) { /* done */ return; }
wasm-bindgen emits that example inside a JavaScript block comment; the nested */ terminates it early, leaving example text parsed as JavaScript. The module cannot be imported, before inference starts.
Example fix
Our one-line change removes the inner block comment, retaining if (id === undefined) { return; }. The regenerated module passes node --check and imports successfully. Please add generated-JS syntax/import validation to the WASM build checks (related #521). This observation is specific to the recorded wasm-bindgen version; it does not establish behavior across all versions.
Downstream implementation and validation
We run a patched Flare build in STIX Meta Explorer. The publicly committed patch set applies to a8cb07cf54fa43c4e41664316498ed195fa7b018 (flare-web 0.2.21); its SHA-256 is b50f6a694c85e2a74c8a4b9a7690ffa103db01d85eb8014a47e4a373f360b3e4. This is a downstream patch set, not a standalone Flare fork or an upstream-ready PR. It contains several fixes; the relevant section is linked above.
Validation notes and build/training instructions describe the tested scope. Measurements were recorded during September 8–9 development; this report is being filed September 21 after checking that upstream main is still at the same SHA. This report does not claim coverage of every model, quantization, or GPU.
Reproduction
At
a8cb07c, with wasm-bindgen 0.2.117:The generated JavaScript fails syntax validation. The Rust documentation example contains:
/// if (id === undefined) { /* done */ return; }wasm-bindgen emits that example inside a JavaScript block comment; the nested
*/terminates it early, leaving example text parsed as JavaScript. The module cannot be imported, before inference starts.Example fix
Our one-line change removes the inner block comment, retaining
if (id === undefined) { return; }. The regenerated module passesnode --checkand imports successfully. Please add generated-JS syntax/import validation to the WASM build checks (related #521). This observation is specific to the recorded wasm-bindgen version; it does not establish behavior across all versions.Downstream implementation and validation
We run a patched Flare build in STIX Meta Explorer. The publicly committed patch set applies to
a8cb07cf54fa43c4e41664316498ed195fa7b018(flare-web 0.2.21); its SHA-256 isb50f6a694c85e2a74c8a4b9a7690ffa103db01d85eb8014a47e4a373f360b3e4. This is a downstream patch set, not a standalone Flare fork or an upstream-ready PR. It contains several fixes; the relevant section is linked above.Validation notes and build/training instructions describe the tested scope. Measurements were recorded during September 8–9 development; this report is being filed September 21 after checking that upstream main is still at the same SHA. This report does not claim coverage of every model, quantization, or GPU.