mailto: links open blank tab, don't launch email client

[saidwp]

Problem:
When I create a Slash shortcut for a mailto: link (e.g., mailto:info@example.com), clicking the shortcut opens a new, blank browser tab. The mailto: URL is displayed in the address bar, but the default email client does not launch.

Expected behavior:
The Slash shortcut for mailto: links should directly trigger the user's default email client, similar to how direct mailto: links on a webpage or those from other link shorteners (e.g., PrettyLinks) behave.