[GH-ISSUE #886] Websocket: the client is not using the websocket protocol: 'upgrade' token not found in 'Connection' header #7591

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opened 2026-03-12 21:47:38 +03:00 by kerem · 2 comments

kerem commented

2026-03-12 21:47:38 +03:00

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Originally created by @impuLssse on GitHub (Feb 24, 2025).
Original GitHub issue: https://github.com/0xJacky/nginx-ui/issues/886

Describe the bug
Received error 2025-02-24 11:32:38 ERROR /home/runner/work/nginx-ui/nginx-ui/api/terminal/pty.go:20 websocket: the client is not using the websocket protocol: 'upgrade' token not found in 'Connection' header

To Reproduce
Steps to reproduce the behavior:

Go to add list
Add site list
Tap to change TLS
See error

Expected behavior
SSL will be generated

Info (please complete the following information):

Server OS: Ubuntu 22.04
Server Arch: 64
Nginx UI Version: latest
Nginx version: 1.27.4
Your Browser: Chrome

Originally created by @impuLssse on GitHub (Feb 24, 2025). Original GitHub issue: https://github.com/0xJacky/nginx-ui/issues/886 **Describe the bug** Received error 2025-02-24 11:32:38 ERROR /home/runner/work/nginx-ui/nginx-ui/api/terminal/pty.go:20 websocket: the client is not using the websocket protocol: 'upgrade' token not found in 'Connection' header **To Reproduce** Steps to reproduce the behavior: 1. Go to add list 2. Add site list 3. Tap to change TLS 4. See error ![Image](https://github.com/user-attachments/assets/8313c120-9646-49f8-a256-8401adec87d9) **Expected behavior** SSL will be generated **Info (please complete the following information):** - Server OS: Ubuntu 22.04 - Server Arch: 64 - Nginx UI Version: latest - Nginx version: 1.27.4 - Your Browser: Chrome

kerem

2026-03-12 21:47:38 +03:00

closed this issue
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kerem commented

2026-03-12 21:47:54 +03:00

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@0xJacky commented on GitHub (Feb 24, 2025):

Please visit System > Self Check page for more details.

@0xJacky commented on GitHub (Feb 24, 2025): Please visit System > Self Check page for more details.

kerem commented

2026-03-12 21:48:00 +03:00

Author

Owner

@impuLssse commented on GitHub (Feb 24, 2025):

My config with nginx-ui domain
And my system health-check

@impuLssse commented on GitHub (Feb 24, 2025): My config with nginx-ui domain ![Image](https://github.com/user-attachments/assets/d6dcb566-db33-4b0a-9fcc-c3b7fa1351ab) And my system health-check ![Image](https://github.com/user-attachments/assets/6b6e6656-3af9-4a73-8612-82a6cab78485)