fix pdf url accessible conflict

Author: ttop32

public/manifest.json

@@ -22,8 +22,7 @@
 
   "web_accessible_resources": [{
     "resources": ["pdfjs/web/viewer.html", "ocr.html", "opencvHandler.html", "googleDocInject.js","subtitle.js"],
-    "matches": ["<all_urls>"],
-    "use_dynamic_url": true
+    "matches": ["<all_urls>"]
   }],
   "sandbox": {
     "pages": [