message: added null value condition to trigger error in WasmWrapper.ts when trying to invoke interface
diff: @@ -248,7 +248,7 @@ export class WasmWrapper implements Wrapper {
  if (this._wasmModule === undefined) {
  const result = await this._fileReader.readFile(WRAP_MODULE_PATH);
  - if (!result.ok) {
  + if (!result.ok || result.value === null) {
  return ResultErr(Error(`Wrapper does not contain a wasm module`));
  }
  