diff --git a/scripts/webpack.config.dev.js b/scripts/webpack.config.dev.js
index 620d401..92893b6 100644
--- a/scripts/webpack.config.dev.js
+++ b/scripts/webpack.config.dev.js
@@ -31,9 +31,6 @@ module.exports = [
     libraryTarget: 'umd',
   }),
   genConfig({
-    optimization: {
-      minimize: false,
-    },
     entry: path.resolve(__dirname, '..', 'src', 'index.js'),
     filename: 'tesseract.asm.dev.js',
     library: 'Tesseract',
diff --git a/scripts/webpack.config.prod.js b/scripts/webpack.config.prod.js
index 1c8af0b..9f127c7 100644
--- a/scripts/webpack.config.prod.js
+++ b/scripts/webpack.config.prod.js
@@ -7,7 +7,7 @@ const genConfig = ({
   ...common,
   ...config,
   mode: 'production',
-  devtool: 'source-map',
+  // devtool: 'source-map',
   entry,
   output: {
     path: path.resolve(__dirname, '..', 'dist'),
@@ -25,9 +25,6 @@ module.exports = [
     libraryTarget: 'umd',
   }),
   genConfig({
-    optimization: {
-      minimize: false,
-    },
     entry: path.resolve(__dirname, '..', 'src', 'index.js'),
     filename: 'tesseract.asm.min.js',
     library: 'Tesseract',
diff --git a/tests/recognize.test.js b/tests/recognize.test.js
index c1b6670..575572c 100644
--- a/tests/recognize.test.js
+++ b/tests/recognize.test.js
@@ -1,5 +1,4 @@
 const { TesseractWorker } = Tesseract;
-const isBrowser = typeof window !== 'undefined' && typeof window.document !== 'undefined';
 
 const IMAGE_PATH = 'http://localhost:3000/tests/assets/images';
 const SIMPLE_TEXT = 'Tesseract.js\n';