Fixes "TypeError: invalid 'in' operand args"

13 years ago · ec8fdb60fc
1 changed files with 1 additions and 1 deletions
--- a/web/viewer.js
+++ b/web/viewer.js
@ -356,7 +356,7 @@ var PDFView = {
				@@ -356,7 +356,7 @@ var PDFView = {
    window.addEventListener('message', function window_message(e) {
      var args = e.data;

-      if (!('pdfjsLoadAction' in args))
+      if (typeof args !== 'object' || !('pdfjsLoadAction' in args))
        return;
      switch (args.pdfjsLoadAction) {
        case 'progress':