Reflex Docs Throw WebSocket Connection Error

[uzairali19]

Describe the bug

The Alert Dialog documentation page loads, but a persistent WebSocket error appears at the bottom right:
Cannot connect to server: websocket error. Check if server is reachable at wss://e9cb031a-044d-4380-90c4-4e1382950d3e.fly.dev/_event
This affects the usability of interactive features (if any) and may impact developer experience.

To Reproduce

Steps to reproduce the behavior:

• Visit https://reflex.dev/docs/library/overlay/alert-dialog/
• Wait for the page to finish loading
• Observe the WebSocket error appearing in the bottom right of the screen

Code/Link to Repo:
Not applicable – issue occurs on the Reflex documentation site itself

Expected behavior
No connection errors should appear in the UI. If WebSockets are used for interactivity or hot reload previews, they should establish successfully.

Screenshots

Specifics (please complete the following information):

• Python Version: NA
• Reflex Version: NA
• OS: macOS 12.6
• Browser (Optional): Chrome Version 114+

Additional context

This issue appears to be tied to the Reflex docs site attempting to connect to a backend WebSocket service hosted on Fly.io. The endpoint is either unavailable, down, or misconfigured. It may impact pages with interactive components or live examples.

[linear]

ENG-6835 Reflex Docs Throw WebSocket Connection Error

[rourke]

To be honest the website has been unstable for a couple of weeks now. There have been multiple moments of downtime, although not as long as today. I noticed all of a sudden small things like lots of dead links because there are double slashes in the links. Or when you have the theme set to dark mode, and when you refresh the page it first jumps to light mode before it immediately switches back to dark mode. Very annoying during the evening and it didn't do that before.

If you want to be taken seriously you have to at least make your website stable and offer a consistent user experience. I've picked up Reflex for my project a month ago and worked with it very intensively, and this (amongst other things) is making me second guess my decision.

[adhami3310]

we are aware of the downtime issue, we will be deploying a fix today and monitoring it in case it fails again

it first jumps to light mode before it immediately switches back to dark mode

a fix is being worked on in #5608