Hello I have an android application that opens up the device certificates and get some information back from it (APPCID).
  handleCeritifcate(appid) {
OData.defaultHttpClient = sap.AuthProxy.generateODataHttpClient();
this.factory.connectionData = { DeviceType: "Android" };
this.factory.clientCert = new sap.AuthProxy.CertificateFromStore();
console.log("app clientcert:", this.factory.clientCert);
var sUrl = this.factory.baseUrl + "/odata/applications/latest/" + appid + "/Connections";
var request = {
  headers: {},
  certificateSource: this.factory.clientCert,
  requestUri: sUrl,
  data: this.factory.connectionData,
  method: "POST"
};
OData.request(request, (result => {
  // this.onSuccessForRegister(result);
  console.log("certificate success:", result);
}), (error) => {
  console.log("ceritficate error", error);
});
}
I want to save the value I get from this.factory.clientCert and save to localstorage so I can pass it to another app , I'm using inappbrowser postmessage to pass data between sites.
But when I try to save clientCert, it only saves the JSON inside it:
{ SYSTEM : SOURCE } 
without the AuthProxy.CertificateFromStore.
Help would be greatly appreciated.

 
                        
You are trying to store an instated object into the localstorage.
You can try to convert the instance with
JSON.stringify()(MDN) and then save that.