feat(markdown-preview): render HTML and load local images via blob URLs#150
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Enables GitHub-style markdown rendering: raw HTML in .md files now renders (via rehype-raw + rehype-sanitize with a GitHub-compatible allowlist), and relative/absolute local image paths load correctly in the Tauri webview by reading bytes through ctx.files.readBytes and serving them as blob URLs — the same pattern used by the image-viewer extension. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
<img align="left">,<h3>,<br>tags in README files) viarehype-raw+rehype-sanitizewith a GitHub-compatible allowlist./assets/logo.png) now load correctly in the Tauri webview by reading bytes throughctx.files.readBytesand serving them as blob URLs, identical to the pattern used by the image-viewer extensionhttps://img.shields.io/...) pass through unchangedNew files
sanitize-schema.ts— GitHub sanitization schema withsrcprotocol filter removed so local paths reach the custom<img>componentresolveImageSrc.ts— pure helpers (isExternalImageUrl,resolveLocalImagePath) that reuse the existingresolveFilePathfromlinks.tsresolveImageSrc.test.ts— 14 unit tests covering both helpersTest plan
pnpm test— all 141 tests passpnpm --filter silo exec tsc --noEmit— no type errorsREADME.mdin Preview mode — badge images,<img align="left">,<h3>all render (not shown as raw text).mdfile with a relative image path — image loads<script>alert(1)</script>in a.mdfile stays inert🤖 Generated with Claude Code