feat: add User-Agent with Puppeteer version to WebSocket request (#5614)

This will add the User-Agent header to WebSocket requests.

Author: headlesstesting

src/node/NodeWebSocketTransport.ts

@@ -18,11 +18,16 @@ import NodeWebSocket from 'ws';
 
 export class NodeWebSocketTransport implements ConnectionTransport {
  static create(url: string): Promise<NodeWebSocketTransport> {
+ // eslint-disable-next-line @typescript-eslint/no-var-requires
+ const pkg = require('../../../../package.json');
  return new Promise((resolve, reject) => {
  const ws = new NodeWebSocket(url, [], {
  followRedirects: true,
  perMessageDeflate: false,
  maxPayload: 256 * 1024 * 1024, // 256Mb
+ headers: {
+ 'User-Agent': `Puppeteer ${pkg.version}`,
+ },
  });
 
  ws.addEventListener('open', () =>