Authorisation error

We’ve done the whole get client secret thing and everything, exactly as the instructions say and we get the following error when trying to save the widget:

“{“code”: 400, “error_type”: “OAuthException”, “error_message”: “Redirect URI does not match registered redirect URI”}”

Here’s a screenshot of the redirect settings: https://cl.ly/image/3w3E042T0d0i

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