Getting redirect_uri error after Setup for using Customer Account API

So I’ve try to follow the instruction from the readme of the template when a hydrogen project is created so I can access the /account route with the Customer Account API.

Here’s what I’ve done:

1- I’ve setup the ngrok tunnel,

2- Set up the PUBLIC_CUSTOMER_ACCOUNT_API_CLIENT_ID and PUBLIC_CUSTOMER_ACCOUNT_API_URL in my .env file

3- I’ve also configure the Application setup from the Headless APP on the store with my ngrok domain.

4- Added the ngrok doman to the content security policy

But I always end up seeing this error:

It’s as if the ngrok tunnel isn’t use at all which is really confusing
I’m fairly new to hydrogen so I’m not sure what’s happening there

Any help or pointer on what I might have done wrong would be appreciated.

Thanks