To reproduce the problem, you just had to: 1. Go to *Settings > Technical > User Interface > Views*. 2. Press *Export Current View > Excel*. You got this: ``` ReferenceError: assignment to undeclared variable tmp http://localhost:9069/web_export_view/static/src/js/web_export_view.js:95 Traceback: .on_sidebar_export_view_xls/</<@http://localhost:9069/web_export_view/static/src/js/web_export_view.js:95:29 .each@http://localhost:9069/web/static/lib/jquery/jquery.js:383:49 .on_sidebar_export_view_xls/<@http://localhost:9069/web_export_view/static/src/js/web_export_view.js:75:17 .each@http://localhost:9069/web/static/lib/jquery/jquery.js:383:49 .on_sidebar_export_view_xls@http://localhost:9069/web_export_view/static/src/js/web_export_view.js:68:9 Sidebar<.start/<@http://localhost:9069/web/static/src/js/widgets/sidebar.js:46:17 jQuery.event.dispatch@http://localhost:9069/web/static/lib/jquery/jquery.js:4640:50 jQuery.event.add/elemData.handle@http://localhost:9069/web/static/lib/jquery/jquery.js:4309:41 ``` Strict mode was preventing usage of an undeclared variable. Now it's declared.
