Hello Aleksandr,
This behavior is due to the query string (https://demos.telerik.com/blazor-ui?_ga=2.8703669.100016802.1664949455-1931469790.1620243254) that is concatenated to the actual (https://demos.telerik.com/blazor-ui) demo link. I would suggest you use the plain demo URL and delete the query string.
That being said, I am marking this as declined.
Regards,
Svetoslav Dimitrov
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