All phone numbers from navigator.contacts are null


I’m using cordova-plugin-contacts to get all contacts from my phone. I get all contacts and all their entries are correct except the phone numbers. All phone numbers are null. Do you have an idea why? Is there a permission issue?
I’m using:

  • ionic 1.7.10
  • ionic lib 1.1.1
  • cordova 5.4.0
  • cordova-plugin-contacts 1.1.0
  • Android 6.0

This is the code to get the contacts:

function loadContacts() {
    ionic.Platform.ready(function () {
        var options = new ContactFindOptions();
        options.multiple = true;
        options.hasPhoneNumber = true;
        var fields = ["*"];
        navigator.contacts.find(fields, _importContacts, _loadingContactsError, options);