ProxyConfigArray in type def (types/lib/Server.d.ts) is not an Array

[whitetrefoil]

Bug report

In the bundled type delcaration file "types/lib/Server.d.ts", type ProxyConfigArray is defined to not an array but what its item should be.

Actual Behavior

type ProxyConfigArray = {
  path?: string | string[] | undefined;
  context?: string | string[] | HttpProxyMiddlewareOptionsFilter | undefined;
} & HttpProxyMiddlewareOptions &
  ByPass;

Expected Behavior

Below codes are modified base on @types/webpack-dev-server codes:

type ProxyConfigArrayItem = {
    path?: string | string[] | undefined;
    context?: string | string[] | HttpProxyMiddlewareOptionsFilter | undefined;
} & HttpProxyMiddlewareOptions &
  ByPass;

type ProxyConfigArray = ProxyConfigArrayItem[];

How Do We Reproduce?

import type { Configuration } from 'webpack-dev-server'
const apiPrefixes: string[] = ['/api/']
const devServerOptions: Configuration = {
  proxy: [
    {
      // TS2322: Type '{ context: string[]; target: string; }' is not assignable to type 'Options'.
      // Object literal may only specify known properties, and 'context' does not exist in type 'Options'.
      context: apiPrefixes,
      target : '',
    },
  ],
}

Please paste the results of npx webpack-cli info here, and mention other relevant information

Not using webpack-cli.
using webpack-dev-server@4.7.2
using typescript@4.5.4

[alexander-akait]

PR welcome

[alexander-akait]

Closed by #4173