Drag and dropping url files into browsers

With Windows Explorer, I can drag .url files anywhere into Chrome or Vivaldi and it will open the relevant pages. With Directory Opus, it only works in Chrome if I drag into the URL address bar and then press enter on the address. In Vivaldi, it doesn't work at all.
Is this a bug, a feature or is there a setting somewhere I can change?
Any advice would be much appreciated.

For me D&D of an .url from lister to Edge or Chrome window opens the .url as text. D&D from Desktop opens web page. D&D from lister to address bar of the browsers works as for @MattB1 .

Directory Opus 13.10.5 (Beta) Build 9069 x64
OS 6.1 (B:7601 P:2 T:1) SP 1.0 "Service Pack 1"