Hi Adrian,
This behavior should due to the security fix introduced in WebRatio. For more details refer to latest Release Notes (WR7 and WR8).
https://my.webratio.com/learn/learningobject/webratio-72-release-notes
https://my.webratio.com/learn/learningobject/webratio-mobile-platform-810-release-notes-v-80
For example for WebRatio 7 you can refer to the "MOVING FROM 7.2.16" section of related Release Notes reported above.