We are getting this error message on the latest mac os only (Ios 12) and only on Safari.
TypeError: null is not an object(evaluating 'document.getElementById('ctl00_PageContent_QUES_TITLERequiredFieldValidator') ['controltovalidate']="ctl00_PageContent_QUES_TITLE"')
TypeError: null is not an object (evaluationg 'b._behaviors') Telerik.web.ui.webresource.axd:6:7292
TypeError: null is not an object (evaluationg 'a.control=this') Telerik.web.ui.webresource.axd:6:7420
This does not happen on a mac using chrome nor on any browser on windows or linix.
Any help would be appreciated.
If the issue persists please send us a sample runnable project where the issue is reproduced. This will enable us to investigate the problematic behavior and look for its cause.