Upgrade from 12.5 to Later - Process not calling report

Hi All,

I have some an input text box which uses some javascript to go run a process which runs a report and returns a list of possible combinations to select from (like an autocomplete). We are upgrading from 12.5 to later versions.

When upgrading (to any later version) this functionality does not work. There is no list generated and when i look in devtools it seems the javascript has initiated the process but the process hasn't initiated the report (no redirect). In 12.5 this seems to allow a redirect to the process. 

I realise this is a bit convoluted but has anyone had similar issues?!

Cheers,

Rich