[🐛 Bug]: 4.28 does not start noVNC sessions correctly

[parholmdahl]

What happened?

No NoVNC session can be viewed from GUI in version 4.28 of hub.

Resulting in console error:

How can we reproduce the issue?

1. Upgrade Grid and nodes to 4.28
2. Run a session that takes some time, so that you can look into the session
3. Go to selenium hub GUI and session page. 
4. Click on the camera icon.

Observe that the whole page get's white, and an error in the console log appears.

Relevant log output

Uncaught TypeError: dh.default is not a constructor at x (LiveView:tsx:63:20) at LiveView.ts:77:5

Operating System

MacOS

Selenium version

4.28.0

What are the browser(s) and version(s) where you see this issue?

Latest Chrome and Safari

What are the browser driver(s) and version(s) where you see this issue?

Latest Chromedriver

Are you using Selenium Grid?

Yes. 4.28

[github-actions]

@parholmdahl, thank you for creating this issue. We will troubleshoot it as soon as we can.

---

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Thank you!

[vcc-ehemdal]

We're experiencing the same issue.

A minimal docker-compose.yml that demonstrates the issue:

services:
  chrome:
    image: selenium/node-chrome:132.0
    shm_size: 2gb
    depends_on:
      - selenium-hub
    environment:
      - SE_EVENT_BUS_HOST=selenium-hub
      - SE_EVENT_BUS_PUBLISH_PORT=4442
      - SE_EVENT_BUS_SUBSCRIBE_PORT=4443
    entrypoint: bash -c 'SE_OPTS="--host $$HOSTNAME" /opt/bin/entry_point.sh'

  selenium-hub:
    image: selenium/hub:4.28
    ports:
      - "4442:4442"
      - "4443:4443"
      - "4444:4444"

A minimal Python example just to get a session rolling:

import time
from selenium import webdriver

def main():
    print("Starting the remote session")
    driver = webdriver.Remote("http://localhost:4444/wd/hub", options=webdriver.ChromeOptions())
    print("Navigating")
    driver.get("https://www.google.com")
    print("Sleeping for 60 seconds")
    try:
        time.sleep(60)
    except KeyboardInterrupt:
        pass
    print("Closing the browser")
    driver.quit()


if __name__ == "__main__":
    main()

[ddavid-almeida]

Same problem here