Slack API - Link to custom URI scheme

Question

I have a (working) custom URI scheme that opens an app in my local machine. It looks somewhat like this:

customscheme://?ip=xx.xx.xx.xx?platform=xx

I am trying to send the user a message using the Slack API including a link that opens the custom URI. It seems to work with mailto: links but not with mine.. The syntax I am trying is the following:

<customscheme://?ip=xx.xx.xx.xx?platform=xx|Open Uri>

or

[Open Uri](customscheme://?ip=xx.xx.xx.xx?platform=xx)

without success.

The thing is, I am able to create the link from the UI using the Link (Ctrl+Shift+U) functionality, pasting the exact same link from above. The outcome is exactly what I want, the text with the custom URI as the link (and it opens it after a security check).

Is there some security concern that keeps me from getting this done?

Answer 1

I found that inserting some word before ? then will work well

customscheme://foo?ip=xx.xx.xx.xx?platform=xx