When viewing PDF chunks in semantic search, the PDF viewer failed with
"can't access private field" errors. This was caused by:
1. CSP blocks web workers (worker-src 'none'), forcing fake worker mode
2. Vite transforms ES private fields in the bundle, but the worker file
is untransformed, causing incompatible private field implementations
3. Vue's ref() wraps PDFDocumentProxy in a Proxy, which can't access
ES private fields
Fixed by:
- Loading pdfjs-dist externally via script tag (avoids Vite transform)
- Creating pdfjs-loader.mjs that imports pdf.mjs and sets window.pdfjsLib
- Using Util::addScript() for CSP-compliant script loading with nonces
- Using shallowRef() instead of ref() for pdfDoc to avoid Proxy wrapper
- Setting workerSrc at runtime using OC.linkTo() for correct app path
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Chris Coutinho