Problem Description:
https://github.com/facebook/create-react-app/issues/11762#issue-1080972271
i.e.
Set the proxy in package.json, and then start the project through npm start or yarn start, the error is as follows:
>yarn start
yarn run v1.22.10
$ react-scripts start
Attempting to bind to HOST environment variable: test.localhost
If this was unintentional, check that you haven't mistakenly set it in your shell.
Learn more here: https://cra.link/advanced-config
Invalid options object. Dev Server has been initialized using an options object that does not match the API schema.
- options.allowedHosts[0] should be a non-empty string.
error Command failed with exit code 1.
Solution: Don’t set the proxy in package.json, but set it in src/setupProxy.js, and delete the proxy in package.json, and finally restart npm start.
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