perspective-dev/perspective · error

Stage 0 wasm loading failed, skipping

Error message

Stage 0 wasm loading failed, skipping

What it means

Warning in the wasm stage-0 loader: decompressing the provided wasm (extracting the embedded uncompressed payload) failed, so the loader logs this and returns the raw wasm bytes as-is. Stage 0 is an optimization; its failure is non-fatal and the original (larger) wasm is used unchanged.

Solutions

1. Inspect the caught error for corruption or truncation of the wasm asset
2. Verify the served .wasm file has correct Content-Type and is not HTML from an error page
3. Check that no proxy/CDN mangles or re-encodes the binary response
4. Accept the warning if functionality is normal — only payload size/load time is affected

When it happens

Trigger: Thrown at rust/perspective-js/src/ts/wasm/decompress.ts:61 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of perspective-dev/perspective@11c8238c0c (2026-09-09). Data as JSON: /api/errors/0cfb6c831e9114fc. Report an issue: GitHub.

Appendix: source

Thrown at rust/perspective-js/src/ts/wasm/decompress.ts:61

        return buffer as Module;
    }
}

export async function load_wasm_stage_0(
    wasm:
        | ArrayBuffer
        | Response
        | WebAssembly.Module
        | (() => Promise<ArrayBuffer>),
): Promise<Uint8Array> {
    if (wasm instanceof Function) {
        wasm = await wasm();
    }

    try {
        return await extract(wasm as ArrayBuffer);
    } catch (e) {
        console.warn("Stage 0 wasm loading failed, skipping");
        return new Uint8Array(wasm as ArrayBuffer);
    }
}

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