fix: worker error handling

reactive_home/loader.ts

@@ -39,6 +39,7 @@ for await (const path of walk(flags.root)) {
 
       await new Promise((resolve) => {
         worker.onerror = (error) => {
+          error.preventDefault();
           console.error(
             `Terminate worker ${path.path} because of an error. Restart in 5s.`,
             error.error

test-modules/test5-worker.ts

@@ -0,0 +1,3 @@
+await new Promise((resolve) => setTimeout(() => resolve(void 0), 1000));
+
+throw new Error("Test");

test-modules/test5.ts

@@ -0,0 +1,20 @@
+while (true) {
+  try {
+    const worker = new Worker(
+      new URL("./test5-worker.ts", import.meta.url).href,
+      {
+        type: "module",
+      }
+    );
+
+    await new Promise((resolve) => {
+      worker.onerror = (error) => {
+        error.preventDefault();
+        console.log(`error: `, error);
+        resolve(null);
+      };
+    });
+  } catch (error) {
+    console.error("error2: ", error);
+  }
+}