diff --git a/app/4/index.js b/app/4/index.js
index 5e80447..8993a40 100644
--- a/app/4/index.js
+++ b/app/4/index.js
@@ -1,5 +1,5 @@
 new p5(sketch => {
-  sketch.disableFriendlyErrors = false;
+  sketch.disableFriendlyErrors = true;
   // reused dimensions and a seed
   let seed, width, height, noiseResolution, overdraw, blurQuality;
   const layers = {}; // offscreen layers
diff --git a/app/5/index.js b/app/5/index.js
index 760bff0..704c338 100644
--- a/app/5/index.js
+++ b/app/5/index.js
@@ -1,5 +1,5 @@
 new p5(sketch => {
-  sketch.disableFriendlyErrors = false;
+  sketch.disableFriendlyErrors = true;
   // reused dimensions and a seed
   let seed, width, height, noiseResolution, overdraw, blurQuality;
   const layers = {}; // offscreen layers
diff --git a/app/6/index.js b/app/6/index.js
index ca23027..284494c 100644
--- a/app/6/index.js
+++ b/app/6/index.js
@@ -1,5 +1,5 @@
 new p5(sketch => {
-  sketch.disableFriendlyErrors = false;
+  sketch.disableFriendlyErrors = true;
   // reused dimensions and a seed
   let seed, width, height, noiseResolution, overdraw, blurQuality;
   const layers = {}; // offscreen layers
diff --git a/app/7/index.js b/app/7/index.js
index 31c7b5b..4488885 100644
--- a/app/7/index.js
+++ b/app/7/index.js
@@ -1,7 +1,7 @@
 const Delaunay = require('./delaunay.js');
 
 new p5(sketch => {
-  sketch.disableFriendlyErrors = false;
+  sketch.disableFriendlyErrors = true;
   // reused dimensions and a seed
   let seed, width, height, noiseResolution, overdraw, blurQuality;
   const layers = {}; // offscreen layers