Unable to remove attachment on Service Portal Issue When using customized SC Catalog Item widget, you may face issue in deleting/removing the attachment on catalog item page in Service Portal. An error "ReferenceError: dialogPolyfill is not defined" can also be seen on browser console for this issue. This error can be observed when dependency is not added to the custom widget. ReleaseAll versions.CauseMissing widget dependency "dialog-polyfill" on the SC Catalog Item widget.ResolutionNavigate to Service Portal > WidgetsOpen the cloned version of 'SC Catalog item" widget/custom widget which is used for rendering the catalog item in Service Portal.Go to the related lists tab 'Dependencies'If dependency 'dialog-polyfill' not related, related it using the Edit buttonNow, you can check that attachments can be removed on Catalog item in Service PortalRelated LinksAfter adding the widget dependency "dialog-polyfill", the selected slush bucket should show something similar to the below screenshot: