How To Use LocalStorage with MSAL.js

How do I use LocalStorage with MSAL.js?

According to this, there's a property, cacheLocation, I need to set to 'localStorage'.

The following is still using sessionStorage:

var clientApplication = new Msal.UserAgentApplication(applicationConfig.clientID, applicationConfig.authority, function (errorDesc, token, error, tokenType) {
        // Called after loginRedirect or acquireTokenPopup
    });
clientApplication.cacheLocation = 'localStorage';