Error parsing Mermaid diagram with title set

Steps to reproduce

With the following

title: Animal example


Animal <|-- Duck

Expected result

Graph with title

Actual result

Error parsing Mermaid diagram!

Parse error on line 1:
---title: Animal e
Expecting 'open_directive', 'NEWLINE', 'SPACE', 'GRAPH', got 'LINK'`


  • Operating system: Windows 10
  • Debug info:

Additional information

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Confirming this issue.

Mermaid frontmatter isn’t parsed properly.

Screenshot from 2023-02-01 20-48-04

For comparison here is the same graph in the Mermaid live editor, which works just fine.

when was this added to mermaid?

1 Like

This seems to be a merged in Nov 21, 2022 (

We updated in 1.1.13

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