-IgnoreCertificateCheck or -SkipSslVerification parameter for [Invoke-WebRequest & Invoke-RestMethod]
Invoke-WebRequest & Invoke-RestMethod need a parameter to easily skip/ignore checking for a valid certificate of https uri's. This could be required for a number of reasons such as development site only using self signed certificate while testing.
Ryan Bolger commented
As of Powershell Core 6.0, both of these functions now have a -SkipCertificateCheck parameter. Now, they just need to backport the functionality to Desktop edition.