ruvnet/ruflo · error

Failed to fetch WASM: ${response.status}

Error message

Failed to fetch WASM: ${response.status}

What it means

loadWasmBrowser()'s bundler-import fallback failed and the raw fetch of the WASM path came back with a non-OK HTTP status. The status is surfaced so the caller can distinguish 404 (wrong path) from 5xx (serving problem); the WASM module is not loaded.

Source

Thrown at v3/plugins/prime-radiant/src/wasm-bridge.ts:260

      // optionalDependency at build time (TS2307 when it isn't installed).
      const pkg: string = 'prime-radiant-advanced-wasm';
      const primeRadiant = await import(pkg);

      if (typeof primeRadiant.default === 'function') {
        await primeRadiant.default();
      }

      this.wasmModule = primeRadiant as unknown as WasmModule;
      this.bundleSize = 92 * 1024;

      if (this.config.enableLogging) {
        console.log('[Prime Radiant] WASM module loaded via bundler');
      }
    } catch {
      // Fall back to fetch
      const response = await fetch(wasmPath);
      if (!response.ok) {
        throw new Error(`Failed to fetch WASM: ${response.status}`);
      }

      const wasmBuffer = await response.arrayBuffer();
      this.bundleSize = wasmBuffer.byteLength;

      const importObject = this.createImportObject();
      if (typeof WebAssembly.instantiateStreaming === 'function') {
        // Streaming compilation (faster)
        const result = await WebAssembly.instantiateStreaming(
          fetch(wasmPath),
          importObject
        );
        this.wasmModule = result.instance.exports as unknown as WasmModule;
      } else {
        // Standard compilation
        const wasmModule = await WebAssembly.compile(wasmBuffer);
        const instance = await WebAssembly.instantiate(wasmModule, importObject as WebAssembly.Imports);
        this.wasmModule = instance.exports as unknown as WasmModule;

View on GitHub (pinned to fa13ee4ad6)

Solutions

1. Verify the WASM URL is reachable and served with the correct MIME type (application/wasm).
2. Check the HTTP status; fix CORS or hosting configuration if the fetch is rejected.

When it happens

Trigger: Thrown at v3/plugins/prime-radiant/src/wasm-bridge.ts:260 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of ruvnet/ruflo@fa13ee4ad6 (2026-08-18). Data as JSON: /api/errors/19022bd2b965eb79. Report an issue: GitHub.