Call initThreadPool().

Now we have a new error calling Crypto.getRandomValues() backed by a
SharedArrayBuffer.

See: w3c/webcrypto#213

README.md

@@ -46,3 +46,9 @@ Then webassembly needs threads enabled, see:
 
 * https://github.com/GoogleChromeLabs/wasm-bindgen-rayon
 * https://rustwasm.github.io/wasm-bindgen/examples/raytrace.html
+
+## Notes
+
+```
+TypeError: Crypto.getRandomValues: Argument 1 can't be a SharedArrayBuffer or an ArrayBufferView backed by a SharedArrayBuffer
+```

client/main.js

@@ -1,5 +1,3 @@
-//import Worker from "worker-loader!./worker.js";
-
 if (window.Worker) {
   // DOM references
   const clientLabel = document.querySelector(".client span");

client/webpack.config.js

@@ -7,6 +7,7 @@ module.exports = {
     path: path.resolve(__dirname, "dist"),
     filename: "index.js",
   },
+  devtool: false,
   mode: "development",
   plugins: [new CopyWebpackPlugin(["index.html"])],
   devServer: {
@@ -18,5 +19,6 @@ module.exports = {
   experiments: {
     //syncWebAssembly: true,
     asyncWebAssembly: true,
+    topLevelAwait: true,
   },
 };

client/worker.js

@@ -1,3 +1,8 @@
+import init, { initThreadPool} from 'ecdsa-wasm';
+
+await init();
+await initThreadPool(navigator.hardwareConcurrency);
+
 import("ecdsa-wasm")
   // Now we have the WASM methods available
   .then((wasm) => {