[Bug]: pw.Chromium.Connect("ws://127.0.0.1:8000/") err: Cannot read properties of undefined (reading 'launch')

[iDukeLu]

• playwright-go Version: latest-v0.5001.0
• Browser: Chromium
• OS and version: MacOS
• golang version 1.23.5

I'm running a playwright server locally using Docker:

docker run -p 8000:8000 --rm --init -it mcr.microsoft.com/playwright:v1.50.0-jammy /bin/sh -c "npx -y playwright@v1.50.0 run-server --port 8000 --host 0.0.0.0 --mode extension"

When I try to run the Official Example using browser, err := pw.Chromium.Connect("ws://127.0.0.1:8000/"), an error occurs:

could not launch browser: playwright: Cannot read properties of undefined (reading 'launch')

But when running the Official Example using browser, err := pw.Chromium.Launch(), everything works fine.

Here's the complete code:

package main

import (
  "fmt"
  "log"

  "github.com/playwright-community/playwright-go"
)

func main() {
  pw, err := playwright.Run()
  if err != nil {
    log.Fatalf("could not start playwright: %v", err)
  }
  browser, err := pw.Chromium.Connect("ws://127.0.0.1:8000/")
  if err != nil {
    log.Fatalf("could not launch browser: %v", err)
  }
  page, err := browser.NewPage()
  if err != nil {
    log.Fatalf("could not create page: %v", err)
  }
  if _, err = page.Goto("https://news.ycombinator.com"); err != nil {
    log.Fatalf("could not goto: %v", err)
  }
  entries, err := page.Locator(".athing").All()
  if err != nil {
    log.Fatalf("could not get entries: %v", err)
  }
  for i, entry := range entries {
    title, err := entry.Locator("td.title > span > a").TextContent()
    if err != nil {
      log.Fatalf("could not get text content: %v", err)
    }
    fmt.Printf("%d: %s\n", i+1, title)
  }
  if err = browser.Close(); err != nil {
    log.Fatalf("could not close browser: %v", err)
  }
  if err = pw.Stop(); err != nil {
    log.Fatalf("could not stop Playwright: %v", err)
  }
}