[Feature]: launchServer bind hostname or address

[cavivie]

🚀 Feature Request

I really like the server method that playwright provides so that I can remotely control the test nodes. Currently, I can use docker to start a playwright server and expose ports to a control node playwright client for testing. In contrast, when I run playwright server directly without docker, I am only able to get the ws url of localhost, which prevents me from connecting to it directly through other control nodes within a connectable network.

Example

const { chromium, webkit, firefox } = require('playwright');  // Or 'webkit' or 'firefox'.

(async () => {
  [chromium, webkit, firefox].forEach(async browserType => {
    const browserServer = await browserType.launchServer({
      // host: "0.0.0.0", // unsupported yet
      // port: 55432,
      // wsPath: "",
    });
    const wsEndpoint = browserServer.wsEndpoint();
    console.log(wsEndpoint, "for", browserType.name());
  })
  // Close browser instance.
  // await browserServer.close();
})();

Motivation

Improve API usability and playability.