Render Mermaid diagrams in exported HTML - #1173
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YoshihideShirai wants to merge 3 commits into
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What changed
This renders Mermaid diagrams during HTML export by converting generated
<pre class="mermaid">blocks into embedded SVG before the HTML is written.The export path now reuses Mermaid in a Node/JSDOM environment, keeps Mermaid's strict security level, and only runs this extra rendering step for the
html5backend. A focused unit test covers the exported HTML transformation.Why
Fixes #1170. In v4, the VS Code preview initializes Mermaid in the webview, but exported HTML is static and did not include a Mermaid renderer or pre-rendered diagram output. As a result, Mermaid blocks exported as raw
<pre class="mermaid">elements and stayed blank in a browser.Validation
npm install --package-lock-only --ignore-scriptsnpm run lintnpm run format && git diff --exit-codenpm run typechecknpm run build-testnpm run test:unit