{"action":"opened","issue":{"url":"https://api.github.com/repos/webpack/webpack/issues/1976","labels_url":"https://api.github.com/repos/webpack/webpack/issues/1976/labels{/name}","comments_url":"https://api.github.com/repos/webpack/webpack/issues/1976/comments","events_url":"https://api.github.com/repos/webpack/webpack/issues/1976/events","html_url":"https://github.com/webpack/webpack/issues/1976","id":130675253,"number":1976,"title":"Ability to skip specific entry from ever (re)building?","user":{"login":"mgcrea","id":108273,"avatar_url":"https://avatars.githubusercontent.com/u/108273?v=3","gravatar_id":"","url":"https://api.github.com/users/mgcrea","html_url":"https://github.com/mgcrea","followers_url":"https://api.github.com/users/mgcrea/followers","following_url":"https://api.github.com/users/mgcrea/following{/other_user}","gists_url":"https://api.github.com/users/mgcrea/gists{/gist_id}","starred_url":"https://api.github.com/users/mgcrea/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mgcrea/subscriptions","organizations_url":"https://api.github.com/users/mgcrea/orgs","repos_url":"https://api.github.com/users/mgcrea/repos","events_url":"https://api.github.com/users/mgcrea/events{/privacy}","received_events_url":"https://api.github.com/users/mgcrea/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-02-02T12:56:55Z","updated_at":"2016-02-02T12:56:55Z","closed_at":null,"body":"I'm playing with a webpack setup for a React app and I'm encountering livereloading performance issues notably when editing SCSS files (loaded from js with `import './style.scss';`).\r\n\r\nThe culprit is the huge payload of librairies that are bundled. I've managed to split them in two separate entries:\r\n\r\n```js\r\n  entry: {\r\n    bundle: './src/index',\r\n    vendor: ['react', 'react-dom', 'redux', 'redux-actions', 'react-redux', 'react-router'].concat(env === 'development' ? ['webpack-hot-middleware/client?quiet=false', 'babel-preset-react-hmre', 'redux-devtools', 'redux-devtools-log-monitor', 'redux-devtools-dock-monitor'] : [])\r\n  },\r\n```\r\n\r\nAnd optimize the bundles:\r\n\r\n```js\r\nif (env !== 'test') {\r\n  plugins.push(new webpack.optimize.CommonsChunkPlugin({\r\n    name: 'vendor',\r\n    filename: 'vendor.bundle.js',\r\n    minChunks: Infinity\r\n  }));\r\n}\r\n```\r\n\r\nHowever if I edit one of my SCSS files, webpack still checks the `vendor` payload for changes. And it's eating a couple of seconds each time, defeating the livereloading feature of CSS.\r\n\r\nIs there any way to disable the reloading to ever check the vendor bundle?"}}