Failing widget errors on Employee Center ProDescriptionWhen navigating to the Employee Service Center many failing widget errors are seen, similar to: Server JavaScript error Cannot find function isContentPreview in object function () {...}.ErrorLine number 96 (sp_widget.d0009941eb103010ed7966d6475228c1.script)ErrorScript source code logged to browser consoleErrorFailing widget: 'Employee Center Header' (d0009941eb103010ed7966d6475228c1)ErrorLine number 16 (sp_widget.1b6504a30b0303008cd6e7ae37673ae3.script)ErrorFailing widget: 'Video Carousel (CD)' (1b6504a30b0303008cd6e7ae37673ae3)ErrorLine number 19 (sp_widget.62974aeb0b5303008cd6e7ae37673a42.script)ErrorFailing widget: 'Upcoming Events (CD)' (62974aeb0b5303008cd6e7ae37673a42)ErrorLine number 11 (sp_widget.26b2b8cfff02201014c6a36cf43bf1a0.script)ErrorFailing widget: 'Content Experience' (26b2b8cfff02201014c6a36cf43bf1a0)Release or EnvironmentRome onwardsCauseCheck on the scripts which are mentioned in the errors, to see if they are modified from OOB. In this case, the Script Include "cd_ContentDelivery", which is referenced in the widgets mentioned in the error messages, had been customized and therefore it was skipped during the latest upgrade.ResolutionRevert the Script Include to OOB or incorporate your customisations into the Rome version of the same.