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Fix for #6720: HMR not working in Firefox if proxy option present #7444

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Merged
merged 3 commits into from
Aug 7, 2019
Merged

Fix for #6720: HMR not working in Firefox if proxy option present #7444

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2066da9
All get requests for /sockjs-node* excluded from processing by http-p…
mrmckeb Jul 28, 2019
2059bb0
All get requests for /sockjs-node* excluded from processing by http-p…
dmile Jul 28, 2019
6609da4
Merge remote-tracking branch 'origin/fix-hmr-for-firefox' into fix-hm…
dmile Jul 28, 2019
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8 changes: 6 additions & 2 deletions packages/react-dev-utils/WebpackDevServerUtils.js
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Original file line number Diff line number Diff line change
Expand Up @@ -361,10 +361,14 @@ function prepareProxy(proxy, appPublicFolder) {
process.exit(1);
}

// If proxy is specified, let it handle any request except for files in the public folder.
// If proxy is specified, let it handle any request except for
// files in the public folder and requests to the WebpackDevServer socket endpoint.
// https://github.com/facebook/create-react-app/issues/6720
function mayProxy(pathname) {
const maybePublicPath = path.resolve(appPublicFolder, pathname.slice(1));
return !fs.existsSync(maybePublicPath);
const isPublicFileRequest = fs.existsSync(maybePublicPath);
const isWdsEndpointRequest = pathname.startsWith('/sockjs-node'); // used by webpackHotDevClient
return !(isPublicFileRequest || isWdsEndpointRequest);
}

if (!/^http(s)?:\/\//.test(proxy)) {
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