fix(pdfjs): ensure correct MIME type for PDF.js worker files

Dockerfile

@@ -64,6 +64,12 @@ server {
         try_files \$uri \$uri/ ${RAGFLOW_BASE}index.html;
     }
 
+    # 为 pdfjs worker 提供正确的 Content-Type（避免 .mjs 被当作 application/octet-stream）
+    location ^~ /pdfjs-dist/ {
+        # 统一按 application/javascript 返回，确保浏览器可作为模块脚本加载
+        default_type application/javascript;
+    }
+
     # 静态资源缓存
     location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg)$ {
         expires 1y;

scripts/copy-pdfjs-worker.mjs

@@ -3,12 +3,18 @@ import path from 'node:path';
 
 const src = path.resolve('node_modules/pdfjs-dist/build/pdf.worker.min.mjs');
 const destDir = path.resolve('public/pdfjs-dist');
-const dest = path.join(destDir, 'pdf.worker.min.mjs');
+const destMjs = path.join(destDir, 'pdf.worker.min.mjs');
+const destJs = path.join(destDir, 'pdf.worker.min.js');
 
 try {
   fs.mkdirSync(destDir, { recursive: true });
-  fs.copyFileSync(src, dest);
-  console.log(`[pdfjs-dist] Worker copied to: ${dest}`);
+  // 复制 .mjs
+  fs.copyFileSync(src, destMjs);
+  console.log(`[pdfjs-dist] Worker copied to: ${destMjs}`);
+
+  // 同步生成 .js 文件以兼容部分服务器缺少 mjs MIME 的情况
+  fs.copyFileSync(src, destJs);
+  console.log(`[pdfjs-dist] Worker duplicated to: ${destJs}`);
 } catch (err) {
   console.error('[pdfjs-dist] Failed to copy worker:', err);
   process.exitCode = 1;

src/pages/chunk/parsed-result.tsx

@@ -2,7 +2,9 @@ import React, { useState, useEffect, useRef } from 'react';
 // 使用 pdf.js 在左侧容器中渲染 PDF 页面，支持自由滑动与页码定位
 import * as pdfjsLib from 'pdfjs-dist';
 
-const PDFJS_WORKER_MJS = '/pdfjs-dist/pdf.worker.min.mjs';
+// 线上 Nginx 默认不识别 .mjs 的 MIME（会返回 application/octet-stream），
+// 这里统一使用 .js 扩展以确保 Content-Type 为 application/javascript
+const PDFJS_WORKER_MJS = '/pdfjs-dist/pdf.worker.min.js';
 // @ts-ignore
 pdfjsLib.GlobalWorkerOptions.workerSrc = PDFJS_WORKER_MJS;
 // @ts-ignore