{"id":20824,"library":"webpack-serve-overlay","title":"webpack-serve-overlay","description":"A rudimentary error overlay for webpack-serve, mimicking the overlay from webpack-dev-server. Version 0.3.0 is the latest stable release, with no recent updates. The package requires webpack-serve and provides a minimal, quick way to display compilation errors in the browser during development. It uses a WebSocket connection similar to webpack-hot-client and requires no extra configuration. Conditional require with environment check is recommended to avoid inclusion in production builds.","status":"active","version":"0.3.0","language":"javascript","source_language":"en","source_url":"https://github.com/g-rath/webpack-serve-overlay","tags":["javascript","webpack","webpack-serve"],"install":[{"cmd":"npm install webpack-serve-overlay","lang":"bash","label":"npm"},{"cmd":"yarn add webpack-serve-overlay","lang":"bash","label":"yarn"},{"cmd":"pnpm add webpack-serve-overlay","lang":"bash","label":"pnpm"}],"dependencies":[],"imports":[{"note":"CommonJS require only; ES import may not work due to missing default export.","wrong":"import 'webpack-serve-overlay'","symbol":"webpack-serve-overlay","correct":"require('webpack-serve-overlay')"},{"note":"Package has no default export; use require for side effects.","wrong":"import webpackServeOverlay from 'webpack-serve-overlay'","symbol":"default","correct":"require('webpack-serve-overlay')"},{"note":"Always include inside development-only conditional to avoid inclusion in production.","wrong":"require('webpack-serve-overlay') without env check","symbol":"global side effect","correct":"if (process.env.NODE_ENV === 'development') { require('webpack-serve-overlay'); }"}],"quickstart":{"code":"// Install: npm install webpack-serve-overlay\n// In your entry file (e.g., index.jsx):\nif (process.env.NODE_ENV === 'development') {\n    require('webpack-serve-overlay');\n}","lang":"javascript","description":"Basic setup to show error overlay in development mode using conditional require."},"warnings":[{"fix":"Ensure webpack-serve is installed alongside.","message":"Requires webpack-serve as a peer dependency to function.","severity":"gotcha","affected_versions":"*"},{"fix":"Specify WEBPACK_SERVE_OVERLAY_WS_URL=http://localhost:8080/ (or appropriate URL).","message":"Overlay may not appear if WebSocket URL cannot be automatically determined; set WEBPACK_SERVE_OVERLAY_WS_URL environment variable.","severity":"gotcha","affected_versions":"*"},{"fix":"Use require() instead of import for this package.","message":"Package uses CommonJS require; ES module imports may fail or cause side-effect issues.","severity":"gotcha","affected_versions":"*"}],"env_vars":null,"last_verified":"2026-04-25T00:00:00.000Z","next_check":"2026-07-24T00:00:00.000Z","problems":[{"fix":"Run npm install webpack-serve-overlay","cause":"Package not installed or missing from node_modules.","error":"Error: Cannot find module 'webpack-serve-overlay'"},{"fix":"Ensure this code is bundled by webpack or use import with appropriate configuration.","cause":"Using require() in an ESM environment without bundler support.","error":"Uncaught ReferenceError: require is not defined"},{"fix":"Set NODE_ENV=development and/or WEBPACK_SERVE_OVERLAY_WS_URL environment variable.","cause":"Missing or incorrect WebSocket URL; or process.env.NODE_ENV not set.","error":"Overlay not showing even in development mode"}],"ecosystem":"npm","meta_description":null,"install_score":null,"install_tag":null,"quickstart_score":null,"quickstart_tag":null}