TLS/certificate issue on iOS 14 using certs that worked on iOS 13 [NSURLErrorDomain, Error Code: -1202]

Question

I'm working on a React-Native app that displays a local website via WKWebView. I just updated to iOS 14 and now I'm getting cert issues again. I was not getting this error yesterday but after installing the update I am met with this awful error message:

"Error loading page"

React-Native WebView Error Screen

In the Metro console, I get the WARN message:

Encountered an error loading page {"canGoBack": false, "canGoForward": false, "code": -1202, "description": "The certificate for this server is invalid. You might be connecting to a server that is pretending to be “10.0.1.10” which could put your confidential information at risk.", "didFailProvisionalNavigation": true, "domain": "NSURLErrorDomain", "loading": false, "target": 7, "title": "", "url": ""}