I think the service worker that the Radzen application registers could be the culprit (hence there is no issue in IE as it doesn't support service workers). Could you try clearing the site data for that application:
Although I cannot run your application without heavy modifications (don't have your database) I was able to add a link to the ssrsreport page in the Login page. Then I saw that error. However as soon as the site cache was cleaned the error disappeared.