Twitter digits is not initialized in web

Question

I am using the Twitter Digits own elements in a portal to allow users to enable Twitter Digits two-factor authentication. The setup I have is exactly the same as the sample they provide: https://docs.fabric.io/web/digits/sign-in-with-phone-number.html

The first time everything works fine. However if from the menu you navigate to a different page and then get back to the twitter digits page or refresh page I am getting the following error in the console

Error: Digits is not initialized at new e (cdn.digits.com/1/sdk.js:1) at Object.logIn (cdn.digits.com/1/sdk.js:1)

below is my digit init code

$('#digits-sdk').load(function () { Digits.init({ consumerKey: 'xxxxxxxxxxxxxxx' }) });