wkwebview not loading my site

i tried using webview to render a website (https://pub-app-stg.intellifms.com/auth/sign-in) and for some reason it stays blank white.

other site works normally, with app transport security.

<key>NSAppTransportSecurity</key>
	<dict>
		<key>NSExceptionDomains</key>
		<dict>
			<key>https://pub-app-stg.intellifms.com/auth/sign-in</key>
			<dict>
				<key>NSIncludesSubdomains</key>
				<true/>
				<key>NSExceptionAllowsInsecureHTTPLoads</key>
				<true/>
				<key>NSAllowsArbitraryLoads</key>
				<true/>
			</dict>
		</dict>
	</dict>

the code goes as simple as this

import SwiftUI
import WebKit

struct WebView: UIViewRepresentable {
    let url: URL
    
    func makeUIView(context: Context) -> WKWebView {
        return WKWebView()
    }
    
    func updateUIView(_ uiView: WKWebView, context: Context) {
        let request = URLRequest(url: url)
        uiView.load(request)
    }
}

struct ContentView: View {
    var body: some View {
        WebView(url: URL(string: "https://pub-app-stg.intellifms.com/auth/sign-in")!)
    }
}

I cant find the reason why it wont, the website connection is secure, it has proper certifications and it just would work. im starting to thinks theres a problem with the certificate because its using a public certificate.