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Don't resolve localhost if on network #2332

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merged 2 commits into from
May 24, 2017
Merged

Don't resolve localhost if on network #2332

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f93d91a
Don't resolve if on network
Timer May 23, 2017
4c1b48c
Update WebpackDevServerUtils.js
Timer May 23, 2017
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17 changes: 16 additions & 1 deletion packages/react-dev-utils/WebpackDevServerUtils.js
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Original file line number Diff line number Diff line change
Expand Up @@ -193,10 +193,25 @@ function resolveLoopback(proxy) {
if (o.hostname !== 'localhost') {
return proxy;
}
try {
// Unfortunately, many languages (unlike node) do not yet support IPv6.
// This means even though localhost resolves to ::1, the application
// must fall back to IPv4 (on 127.0.0.1).
// We can re-enable this in a few years.
/*try {
o.hostname = address.ipv6() ? '::1' : '127.0.0.1';
} catch (_ignored) {
o.hostname = '127.0.0.1';
}*/

try {
// Check if we're on a network; if we are, chances are we can resolve
// localhost. Otherwise, we can just be safe and assume localhost is
// IPv4 for maximum compatibility.
if (!address.ip()) {
o.hostname = '127.0.0.1';
}
} catch (_ignored) {
o.hostname = '127.0.0.1';
}
return url.format(o);
}
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