在企业防火墙后面使用 create-react-app [英] Use create-react-app behind corporate firewall

问题描述

有任何方法可以通过设置代理在企业防火墙后面使用 create-react-app.

there is any way for work with create-react-app behind corporate firewall by setting a proxy.

我已经在 npm 和 yarn 上设置了代理，但这是我在尝试 create-react-app my-app 时看到的:

i have setted the proxy on npm and yarn, but this is what i see when try to create-react-app my-app:

Creating a new React app in F:\react\my-app.

Installing packages. This might take a couple of minutes.
Installing react, react-dom, and react-scripts...

You appear to be offline.
Falling back to the local Yarn cache.

yarn add v0.23.4
info No lockfile found.
[1/4] Resolving packages...
error Couldn't find any versions for "react" that matches "latest" in our cache. Possible versions: ""
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.

Aborting installation.
  yarnpkg add --exact --offline react react-dom react-scripts has failed.

Deleting generated file... package.json
Deleting my-app / from F:\react
Done.

推荐答案

更新: 看起来这个 bug 有 现已修复，并且不应再出现在 1.1.0 版.

Update: Looks like this bug has now been fixed, and should no longer be present in version 1.1.0.

这个问题是由以下事实引起的，即纱线注册表在反应脚本中硬编码到 registry.yarnpkg.com:https://github.com/facebookincubator/create-react-app/blob/master/packages/create-react-app/createReactApp.js#L692

This problem is caused by the fact that the yarn registry is hard-coded in react-scripts to registry.yarnpkg.com: https://github.com/facebookincubator/create-react-app/blob/master/packages/create-react-app/createReactApp.js#L692

根据此拉取请求，如果纱线注册表是无法访问，然后 它会检查看你是否设置了https_proxy环境变量，如果是的话，它会验证那个服务器是可访问的，而不是硬编码纱线注册表.

As per this pull request, if the yarn registry is not reachable, then it will check to see if you have the https_proxy environment variable set, and then if so it will verify that that server is reachable, instead of the hard-coded yarn registry.

重申一下，在 npm/yarn 中设置 proxy/https-proxy 配置是不够的 - 您还需要设置 https_proxy 环境变量，因为这是 create-react-app 将检查的在确定您是否在线时.例如:

To reiterate, it's not enough to set the proxy/https-proxy configs in npm/yarn - you also need to set the https_proxy environment variable, because that's what create-react-app will check when determining if you are online. For example:

https_proxy=https://my.corporate.proxy create-react-app my-new-project

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