https iframe fails to load in brave but not firefox/chrome

[kirkins]

I'm using a website that has an https based iframe pop up for the user to log into a 3rd party system.

Here is Firefox:

Here is Brave:

[kirkins]

I'm looking at this again. Here is what console log shows;

One of the errors is similar to #13390

auth.js:5 Uncaught DOMException: Failed to read the 'localStorage' property from 'Window': Access is denied for this document.
    at Object.<anonymous> (https://steemconnect.com/js/app.min.js:88:15764)
    at t (https://steemconnect.com/js/app.min.js:1:101)
    at Object.<anonymous> (https://steemconnect.com/js/app.min.js:88:14926)
    at t (https://steemconnect.com/js/app.min.js:1:101)
    at Object.<anonymous> (https://steemconnect.com/js/app.min.js:76:90878)
    at t (https://steemconnect.com/js/app.min.js:1:101)
    at Object.<anonymous> (https://steemconnect.com/js/app.min.js:67:266473)
    at t (https://steemconnect.com/js/app.min.js:1:101)
    at https://steemconnect.com/js/app.min.js:1:455
    at https://steemconnect.com/js/app.min.js:1:466

[pes10k]

not able to recreate in beta (though possibly b/c the page has changed, I don't get a popup at all from clicking on the login link, its now a full page display)