Merge remote-tracking branch 'cos/hotfix/jquery-3-fix'

 Closes: #280, #276
 [OSF-8638]

Author: felliott

mfr/server/static/js/mfr.js

@@ -82,7 +82,7 @@
             self.pymParent.iframe.setAttribute('scrolling', 'yes');
 
             self.pymParent.el.appendChild(self.spinner);
-            $(self.pymParent.iframe).load(function () {
+            $(self.pymParent.iframe).on('load', function () {
                 self.pymParent.el.removeChild(self.spinner);
             });