chore(build): fix source maps locations and usage

scripts/build-js

@@ -8,15 +8,18 @@ DIST_DIR_CDN="dist/cdn"
 DIST_DIR_NPM="dist/npm"
 DIST_FILE="$DIST_DIR_CDN/${NAME}.js"
 DIST_FILE_MIN="$DIST_DIR_CDN/${NAME}.min.js"
-DIST_FILE_SOURCEMAP="$DIST_DIR_CDN/${NAME}.min.map"
+DIST_FILE_SOURCEMAP="$DIST_DIR_CDN/${NAME}.js.map"
+DIST_FILE_SOURCEMAP_MIN="$DIST_DIR_CDN/${NAME}.min.js.map"
 
 mkdir -p "$DIST_DIR_CDN" "$DIST_DIR_NPM"
 
 # docsearch.js as one ES5 file + minified version and source maps
 webpack --config webpack.config.jsdelivr.babel.js
 echo "$LICENSE" | cat - "${DIST_FILE}" > /tmp/out && mv /tmp/out "${DIST_FILE}"
+
 uglifyjs "${DIST_FILE}" \
-  --source-map "${DIST_FILE_SOURCEMAP}" \
+  --in-source-map "${DIST_FILE_SOURCEMAP}" \
+  --source-map "${DIST_FILE_SOURCEMAP_MIN}" \
   --preamble "$LICENSE" \
   -c warnings=false \
   -m \

webpack.config.jsdelivr.babel.js

@@ -1,5 +1,6 @@
 export default {
   entry: './index.js',
+  devtool: 'source-map',
   output: {
     path: './dist/cdn',
     filename: 'docsearch.js',