react 跨域代理 | options.allowedHosts[0] should be a non-empty string.

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.

package.json种加入：

"options": {
  "allowedHosts": ["localhost", ".localhost"],
  "proxy": "https://localhost:8080/"
}

箴言：因为这些东西是非常简单的。不要抱怨自己学不会，那是因为你没有足够用心。