issue: Mermaid diagrams don't work #6491

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opened 2025-11-11 16:56:50 -06:00 by GiteaMirror · 1 comment
Owner

Originally created by @ivanbaldo on GitHub (Sep 24, 2025).

Check Existing Issues

  • I have searched for any existing and/or related issues.
  • I have searched for any existing and/or related discussions.
  • I am using the latest version of Open WebUI.

Installation Method

Docker

Open WebUI Version

v0.6.30

Ollama Version (if applicable)

No response

Operating System

RHEL 10

Browser (if applicable)

Firefox 143.0.1

Confirmation

  • I have read and followed all instructions in README.md.
  • I am using the latest version of both Open WebUI and Ollama.
  • I have included the browser console logs.
  • I have included the Docker container logs.
  • I have provided every relevant configuration, setting, and environment variable used in my setup.
  • I have clearly listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc).
  • I have documented step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation. My steps:
  • Start with the initial platform/version/OS and dependencies used,
  • Specify exact install/launch/configure commands,
  • List URLs visited, user input (incl. example values/emails/passwords if needed),
  • Describe all options and toggles enabled or changed,
  • Include any files or environmental changes,
  • Identify the expected and actual result at each stage,
  • Ensure any reasonably skilled user can follow and hit the same issue.

Expected Behavior

Rendering of Mermaid diagrams.

Actual Behavior

No rendering of Mermaid diagrams.

Steps to Reproduce

Ask in the chat for a Mermaid diagram, try several times in different ways just in case the syntax of the diagram is wrong, to rule that out.

Logs & Screenshots

N/A

Additional Information

No response

Originally created by @ivanbaldo on GitHub (Sep 24, 2025). ### Check Existing Issues - [x] I have searched for any existing and/or related issues. - [x] I have searched for any existing and/or related discussions. - [x] I am using the latest version of Open WebUI. ### Installation Method Docker ### Open WebUI Version v0.6.30 ### Ollama Version (if applicable) _No response_ ### Operating System RHEL 10 ### Browser (if applicable) Firefox 143.0.1 ### Confirmation - [x] I have read and followed all instructions in `README.md`. - [x] I am using the latest version of **both** Open WebUI and Ollama. - [x] I have included the browser console logs. - [x] I have included the Docker container logs. - [x] I have **provided every relevant configuration, setting, and environment variable used in my setup.** - [x] I have clearly **listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup** (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc). - [x] I have documented **step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation**. My steps: - Start with the initial platform/version/OS and dependencies used, - Specify exact install/launch/configure commands, - List URLs visited, user input (incl. example values/emails/passwords if needed), - Describe all options and toggles enabled or changed, - Include any files or environmental changes, - Identify the expected and actual result at each stage, - Ensure any reasonably skilled user can follow and hit the same issue. ### Expected Behavior Rendering of Mermaid diagrams. ### Actual Behavior No rendering of Mermaid diagrams. ### Steps to Reproduce Ask in the chat for a Mermaid diagram, try several times in different ways just in case the syntax of the diagram is wrong, to rule that out. ### Logs & Screenshots N/A ### Additional Information _No response_
GiteaMirror added the bug label 2025-11-11 16:56:50 -06:00
Author
Owner

@tjbck commented on GitHub (Sep 25, 2025):

Image

Unable to reproduce, likely a syntax error from the model.

@tjbck commented on GitHub (Sep 25, 2025): <img width="1223" height="849" alt="Image" src="https://github.com/user-attachments/assets/635a8b13-62cf-4860-ab8c-974d5e4bbbfd" /> Unable to reproduce, likely a syntax error from the model.
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Reference: github-starred/open-webui#6491