Unknown code added to XML file in Chrome browser

Can anybody explain to me the next issue please..

I have a XML file. When I open it (via ULR) in Edge it looks correct:

but when I open it (via URL) in Chrome, some unknown code is added at the end:

this code is only in the browser tab, because if I open the source by Ctrl+U, evertything looks correct:

I saved the XML to computer and dropped it at Chrome tab – everything is ok and no additional code.

Is it some kind of Chrome XML viewer bug or virus? Please advice.