I am following this guide
Every time I get to the authenticate page it says the redirect URI is incorrect and crashes. If I change it manually from localhost to my ngrok address that I put into the shopify app settings then it moves on a page and crashes. I then change the localhost part again and it finally authenticates.
When testing the app in the shopify store though it says the app cannot connect securely and fails to display the page.
Any idea what the issue is and how to fix it ? I am new to react and nodejs and koa.
Thanks