@@ -11,85 +11,22 @@ const host = process.env.HOST || '0.0.0.0';
1111
1212module . exports = function ( proxy , allowedHost ) {
1313 return {
14- // WebpackDevServer 2.4.3 introduced a security fix that prevents remote
15- // websites from potentially accessing local content through DNS rebinding:
16- // https://github.com/webpack/webpack-dev-server/issues/887
17- // https://medium.com/webpack/webpack-dev-server-middleware-security-issues-1489d950874a
18- // However, it made several existing use cases such as development in cloud
19- // environment or subdomains in development significantly more complicated:
20- // https://github.com/facebookincubator/create-react-app/issues/2271
21- // https://github.com/facebookincubator/create-react-app/issues/2233
22- // While we're investigating better solutions, for now we will take a
23- // compromise. Since our WDS configuration only serves files in the `public`
24- // folder we won't consider accessing them a vulnerability. However, if you
25- // use the `proxy` feature, it gets more dangerous because it can expose
26- // remote code execution vulnerabilities in backends like Django and Rails.
27- // So we will disable the host check normally, but enable it if you have
28- // specified the `proxy` setting. Finally, we let you override it if you
29- // really know what you're doing with a special environment variable.
30- disableHostCheck : ! proxy ||
31- process . env . DANGEROUSLY_DISABLE_HOST_CHECK === 'true' ,
3214 // Enable gzip compression of generated files.
3315 compress : true ,
34- // Silence WebpackDevServer's own logs since they're generally not useful.
35- // It will still show compile warnings and errors with this setting.
36- clientLogLevel : 'none' ,
37- // By default WebpackDevServer serves physical files from current directory
38- // in addition to all the virtual build products that it serves from memory.
39- // This is confusing because those files won’t automatically be available in
40- // production build folder unless we copy them. However, copying the whole
41- // project directory is dangerous because we may expose sensitive files.
42- // Instead, we establish a convention that only files in `public` directory
43- // get served. Our build script will copy `public` into the `build` folder.
44- // In `index.html`, you can get URL of `public` folder with %PUBLIC_URL%:
45- // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
46- // In JavaScript code, you can access it with `process.env.PUBLIC_URL`.
47- // Note that we only recommend using the `public` folder as an escape hatch
48- // for files like `favicon.ico`, `manifest.json`, and libraries that are
49- // for some reason broken when imported through Webpack. If you just want to
50- // use an image, put it in `src` and `import` it from JavaScript instead.
51- contentBase : paths . appPublic ,
52- // By default files from `contentBase` will not trigger a page reload.
53- watchContentBase : true ,
5416 // Enable hot reloading server. It will provide /sockjs-node/ endpoint
5517 // for the WebpackDevServer client so it can learn when the files were
5618 // updated. The WebpackDevServer client is included as an entry point
5719 // in the Webpack development configuration. Note that only changes
5820 // to CSS are currently hot reloaded. JS changes will refresh the browser.
5921 hot : true ,
60- // It is important to tell WebpackDevServer to use the same "root" path
61- // as we specified in the config. In development, we always serve from /.
62- publicPath : config . output . publicPath ,
63- // WebpackDevServer is noisy by default so we emit custom message instead
64- // by listening to the compiler events with `compiler.plugin` calls above.
65- quiet : true ,
66- // Reportedly, this avoids CPU overload on some systems.
67- // https://github.com/facebookincubator/create-react-app/issues/293
68- // src/node_modules is not ignored to support absolute imports
69- // https://github.com/facebookincubator/create-react-app/issues/1065
70- watchOptions : {
71- ignored : ignoredFiles ( paths . appSrc ) ,
72- } ,
7322 // Enable HTTPS if the HTTPS environment variable is set to 'true'
7423 https : protocol === 'https' ,
7524 host : host ,
76- overlay : false ,
7725 historyApiFallback : {
7826 // Paths with dots should still use the history fallback.
7927 // See https://github.com/facebookincubator/create-react-app/issues/387.
8028 disableDotRule : true ,
8129 } ,
82- public : allowedHost ,
83- proxy,
84- before ( app ) {
85- // This lets us open files from the runtime error overlay.
86- app . use ( errorOverlayMiddleware ( ) ) ;
87- // This service worker file is effectively a 'no-op' that will reset any
88- // previous service worker registered for the same host:port combination.
89- // We do this in development to avoid hitting the production cache if
90- // it used the same host and port.
91- // https://github.com/facebookincubator/create-react-app/issues/2272#issuecomment-302832432
92- app . use ( noopServiceWorkerMiddleware ( ) ) ;
93- } ,
30+ proxy
9431 } ;
9532} ;
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