[FIX] Updated pdf js worker to load from cdn (#1718)

* updated pdf js worker to load from cdn

* lint issue fix

Author: vishnuszipstack

frontend/.gitignore

@@ -11,9 +11,6 @@
 # production
 /build
 
-# pdfjs worker file (copied from node_modules via postinstall)
-/public/pdf.worker.min.js
-
 # misc
 .DS_Store
 .env.local

frontend/package.json

@@ -57,7 +57,6 @@
     "zustand": "^4.3.8"
   },
   "scripts": {
-    "postinstall": "cp node_modules/pdfjs-dist/build/pdf.worker.min.js public/pdf.worker.min.js",
     "start": "react-scripts start",
     "build": "react-scripts build",
     "test": "react-scripts test",

frontend/src/helpers/pdfWorkerConfig.js

@@ -1,4 +1,4 @@
-// Use the worker file from the public folder (served as static asset)
-// This avoids Webpack processing which incorrectly bundles it with require() statements
-// Note: The ?url import suffix only works in Vite, not in CRA (Webpack)
-export const PDF_WORKER_URL = "/pdf.worker.min.js";
+// Use CDN to load the worker file
+// Version must match the installed pdfjs-dist version (3.11.174 via @react-pdf-viewer/core)
+export const PDF_WORKER_URL =
+  "https://unpkg.com/pdfjs-dist@3.11.174/build/pdf.worker.min.js";