in package.json file as follows.
add GENERATE_SOURCEMAP=false to build
scripts: {
"build": "GENERATE_SOURCEMAP=false react-scripts build"
}"build": "GENERATE_SOURCEMAP=false react-scripts build",
"winBuild": "set \"GENERATE_SOURCEMAP=false\" && react-scripts build",
Use npm run build for creating build on Linux.
Use npm run winBuild for creating build on Windows.
In in package.json (Windows)
"scripts": {
...
"cleanBuild": "rimraf ./build/*",
"build": "npm run cleanBuild && set \"GENERATE_SOURCEMAP=false\" && react-scripts build ",