After running any report in CABI 6.3 JasperReports it will hang with a "Please Wait" message box.
<Please see attached file for image>
This problem can be caused by browser addons, such as uBlock Origin, Disconnect, Ghostery and any other app that might "block elements" on a page.
Any Environment is applicable
Disable any addons in Chrome or Firefox. Or add your JasperReports server to each respective "whitelist" or "trusted site".
Re-run the report.