Mask iframe so resizer can go over native PDF

services/web/app/views/project/editor/editor.jade

@@ -2,6 +2,7 @@ div.full-size(
 	ng-show="ui.view == 'editor'"
 	layout="pdf"
 	layout-disabled="ui.pdfLayout != 'sideBySide'"
+	mask-iframes-on-resize="true"
 	resize-on="layout:main:resize"
 	resize-proportionally="true"
 	initial-size-east="'50%'"