val _uriString = "https://mysite.example.com"
                        AndroidView(
                            factory = ::WebView,
                            update = { webView ->
                                WebView.setWebContentsDebuggingEnabled(true)
                                webView.settings.javaScriptEnabled = true
                                webView.webViewClient = WebViewClient()
                                webView.loadUrl(_uriString)
                            },
                            modifier = Modifier
                                .background(Color.Gray)
                                .padding(10.dp).fillMaxWidth().height(300.dp)
                        )

public class WebViewClient {
    ...
    public void onReceivedSslError(WebView view, SslErrorHandler handler,
            SslError error) {
        handler.cancel();
    }
	...
}

                            update = { webView ->
                                WebView.setWebContentsDebuggingEnabled(true)
                                webView.settings.javaScriptEnabled = true
                                webView.webViewClient = object : WebViewClient() {
                                    override fun onReceivedSslError(
                                        view: WebView?,
                                        handler: SslErrorHandler?,
                                        error: SslError?
                                    ) {
                                        Log.i(TAG, "SSL Error:${error?.description()}")
                                        Log.i(TAG, error.toString())
                                        handler?.cancel()   // サーバーとの通信を終了
                                        // handler?.proceed()  // サーバーとの通信を続行（エラーを無視）
                                    }
                                }
                                webView.loadUrl(_uriString)
                            },

fun SslError.description(): String {
    val _e = primaryError
    return when(_e) {
        SSL_NOTYETVALID -> "(${_e}) The certificate is not yet valid"
        SSL_EXPIRED -> "(${_e}) The certificate has expired"
        SSL_IDMISMATCH -> "(${_e}) Hostname mismatch"
        SSL_UNTRUSTED -> "(${_e}) The certificate authority is not trusted"
        SSL_DATE_INVALID -> "(${_e}) The date of the certificate is invalid"
        SSL_INVALID -> "(${_e}) A generic error occurred"
        else -> "Unknown !"
    }
}

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <domain-config>
        <domain includeSubdomains="false">mysite.example.com</domain>
<!--        <domain includeSubdomains="true">example.com</domain>-->
        <trust-anchors>
            <certificates src="@raw/server"/>
        </trust-anchors>
    </domain-config>
</network-security-config>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android">

    <uses-permission android:name="android.permission.INTERNET"/>

    <application
        ...
        android:supportsRtl="true"
        android:networkSecurityConfig="@xml/network_security_config"
        ...
        <activity
            android:name=".MainActivity"
            ...
        </activity>
    </application>

</manifest>