Prevent Mermaid from running on load #398

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mootari wants to merge 1 commit into main from mootari/250622/mermaid-startonload

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mootari commented Jun 22, 2025 •

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When Mermaid loads it tries to render any element that has the class mermaid.

Initializing mermaid with loadOnStart: false (docs) can help prevent unexpected side effects.

The old docs aren't great, but I confirmed that 9.2.2 does default to true as well: https://github.com/mermaid-js/mermaid/blob/v9.2.2/packages/mermaid/src/mermaid.ts#L529


          Prevent Mermaid from running on load

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mootari requested a review from mbostock

June 22, 2025 11:02

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