[🐛 Bug]: hub UI is a blank webpage (index.js 404)

[phlplowe9]

What happened?

According to instruction 3 found here https://hub.docker.com/r/selenium/hub
"(Optional) To see what is happening inside the container, head to the Grid UI at http://localhost:4444/ui⁠."

the UI is a blank webpage. Upon refreshing the page, console will report "404 index.js"

It doesn't matter if I use the latest tag or any set version.

Command used to start Selenium Grid with Docker (or Kubernetes)

docker network create grid
docker run -d -p 4442-4444:4442-4444 --net grid --name selenium-hub selenium/hub:latest
docker run -d --net grid -e SE_EVENT_BUS_HOST=selenium-hub \
    --shm-size="2g" \
    -e SE_EVENT_BUS_PUBLISH_PORT=4442 \
    -e SE_EVENT_BUS_SUBSCRIBE_PORT=4443 \
    selenium/node-firefox:latest

open firefox and browse to http://localhost:4444/ui

Relevant log output

404 index.js

Operating System

ubuntu 24.04

Docker Selenium version (image tag)

have tried latest as well as 4.37.0-20251020

Selenium Grid chart version (chart version)

not using chart

[github-actions]

@phlplowe9, thank you for creating this issue. We will troubleshoot it as soon as we can.

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Thank you!

[phlplowe9]

Ah got it - It's more a documentation issue.
http://localhost:4444/ui found here https://hub.docker.com/r/selenium/hub should be replaced with
http://localhost:4444 as found here https://www.selenium.dev/documentation/grid/getting_started/

[cgoldberg]

@phlplowe9 if you add the trailing slash, it will work also: http://localhost:4444/ui/

I can't figure out where the doc at https://hub.docker.com/r/selenium/hub comes from. @VietND96 can you update the URL in that doc so it works correctly?