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docs: add warning for localhost proxy (#51948)

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PR Close #51948
This commit is contained in:
Evan Kleiner
2023-09-28 16:36:15 -07:00
committed by Alex Rickabaugh
parent 38b4602f03
commit 5ff99f2f9e
1 changed files with 13 additions and 0 deletions
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aio/content/guide/build.md
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@@ -388,6 +388,19 @@ If you edit the proxy configuration file, you must relaunch the `ng serve` proce
</div>
<div class="alert is-important">
As of Node version 17, Node will not always resolve `http://localhost:<port>` to `http://127.0.0.1:<port>`
depending on each machine's configuration.
If you get an `ECONNREFUSED` error using a proxy targeting a `localhost` URL,
you can fix this issue by updating the target from `http://localhost:<port>` to `http://127.0.0.1:<port>`.
See [the http proxy middleware documentation](https://github.com/chimurai/http-proxy-middleware#nodejs-17-econnrefused-issue-with-ipv6-and-localhost-705)
for more information.
</div>
### Rewrite the URL path
The `pathRewrite` proxy configuration option lets you rewrite the URL path at run time.