Protractor: getText() returns empty string from a particular element

[SND76]

Dear Protractor Community,
Thank you for the support that I always get reading your posts.
I have the following problem:
I need to get string form this element:


This is the implementation for getting it:

   var text = "";   
this.getQR = function(){
    var str1 = '{"qrCode": "';
    var str2 = '"}';
    var token = "eyJ0eXAiOiJKV1Ac7JKuZfB-ceUE"

    var qrCode = "";
        var qr = elem.qrCodeValue.getText().then(function(code) {
       return code;
       });
       qr.then(function(text) {
       qrCode = text
       var code = str1.concat(qrCode, str2);

Implementation works fine and returns string for an element with hard coded string. But this one is dynamic and in this particular case I get empty string.
Locators used:
this.qrCodeValue = element(by.css(#qr-code-value'));
or
this.qrCodeValue = element(by.css('.qr-container div div div'));
What I’m doing wrong? Please advise me how I can get it. I need to use the qr code later to login to the web application via API call and now I’m stacked.
Thank you in advance.

[SND76]

Managed to find how to get it here:
https://stackoverflow.com/questions/25845938/protractor-gettext-returns-empty-string-for-non-empty-element
.getAttribute('textContent') works for me.
Closing this issue.