It does, if the server accepts the connection there is nothing preventing it. This is frequently used by apps which are installed on your machine but are acces

It does, if the server accepts the connection there is nothing preventing it. This is frequently used by apps which are installed on your machine but are accessed by links, such as zoom and discord. I think Zoom removed its server after receiving pressure[0] about it, but discord still does it: Head to https://discord.com/invite/test https://discord.com/invite/test and it should open your local discord client, or checking the network requests will reveal up to 10 attempted local ports. [0] https://www.zdnet.com/article/zoom-defends-use-of-local-web-server-on-macs-after-security-report/ https://www.zdnet.com/article/zoom-defends-use-of-local-web-...