Callback URL "https://127.0.0.1:3000/" is not confirmed

[DJFoxHound16]

I’m having trouble login in through twitter for an application that’s being developed.
I keep getting the following error response:

Callback URL "https://127.0.0.1:3000/" is not confirmed. Please check that is whitelisted within the Twitter app settings. undefined

Here’s a screen of my request header, which indeed states "https://127.0.0.1:3000/" as the callback URL.

I definitely set the URL in the whitelist, as can be seen here:

I have no clue why I get this response, searching the board hasn’t really given me a working solution.
Originally "https://localhost:3000" was the URL, which didn’t work either, but the docs recommended me to use the IP.

[osowskit1]

It’s unlikely the local machine has a secured connection. Could you try updating the callbacks to http (replacing https)?

[DJFoxHound16]

I’ve turned off https on my local environment and added a http:// whitelist for all above addresses, but that just gives me the same response, just with an http address.

Callback URL "http://localhost:3000/" is not confirmed. Please check that is whitelisted within the Twitter app settings. undefined

For some oauth providers, https is required for the request to succeed, hence the setting on my end