Merge pull request #8309 from vologab/feature/allow_query_string_for_pdfjs

Allow use versions for pdf.js script (i.e. - pdf.js?2412313)

src/display/api.js

@@ -1064,7 +1064,7 @@ var PDFWorker = (function PDFWorkerClosure() {
     if (typeof PDFJSDev !== 'undefined' &&
         PDFJSDev.test('PRODUCTION && !(MOZCENTRAL || FIREFOX)') &&
         pdfjsFilePath) {
-      return pdfjsFilePath.replace(/(\.(?:min\.)?js)$/i, '.worker$1');
+      return pdfjsFilePath.replace(/(\.(?:min\.)?js)(\?.*)?$/i, '.worker$1$2');
     }
     error('No PDFJS.workerSrc specified');
   }