diff --git a/app/srv/core/main.js b/app/srv/core/main.js
index c12e5717..6ba97f24 100644
--- a/app/srv/core/main.js
+++ b/app/srv/core/main.js
@@ -99,8 +99,7 @@ Error generating stack: `+o.message+`
 try {
 ${p}
 } catch(e) {
-  console.error("Error at item ${t.item.name} (id: ${t.item.id}):
-", ___js);
+  console.error("Error at item ${t.item.name} (id: ${t.item.id}):\\n", ___js);
   console.error(e);
 }
   `)(...Object.values(u),t.item.adv?.js)}catch(f){console.error(`Error at item ${t.item.name} (id: ${t.item.id}):
diff --git a/app/web/src/nova/vi/render/script/eval-script.tsx b/app/web/src/nova/vi/render/script/eval-script.tsx
index 7b03ca7f..e892f9d6 100644
--- a/app/web/src/nova/vi/render/script/eval-script.tsx
+++ b/app/web/src/nova/vi/render/script/eval-script.tsx
@@ -172,7 +172,7 @@ export const viEvalScript = (
 try {
 ${src}
 } catch(e) {
-  console.error("Error at item ${meta.item.name} (id: ${meta.item.id}):\n", ___js);
+  console.error("Error at item ${meta.item.name} (id: ${meta.item.id}):\\n", ___js);
   console.error(e);
 }
   `
diff --git a/pkgs/core/utils/parcel.ts b/pkgs/core/utils/parcel.ts
index f46d55d6..d0e8dd2f 100644
--- a/pkgs/core/utils/parcel.ts
+++ b/pkgs/core/utils/parcel.ts
@@ -17,7 +17,7 @@ export const parcelBuild = async () => {
     ),
     g.mode === "dev" ? "watch" : "build",
     "./src/index.html",
-    g.mode === "dev" ? "--no-hmr" : "--no-optimize",
+    g.mode === "dev" ? "--no-hmr" : "",
     "--dist-dir",
     dir.path(`app/static`),
   ];