How to handle spaces in URL parameter values of HTTPS requests?

Hello, 

I have a HTTPS API which requires a parameter whose value may contain spaces, which are represented with + characters in workibg example URLs I have from the API provider. An example url would be "https://api.server.domain/rpc?name=School+Name".

Hiw do I include this in the parameters of a Communications.makeWebRequest (meaning the second argument to makeWebRequest)?

I tried adding the plus, replacing it with a space or leaving it out completely, and it never worked

Best regards 

Aaron