Help Enable Cookies for WKWebview in Swift (XCode) iOS

Hi there. I have attached my WKWebview Controller for an app, I need someone to help me add code that'll help my cookies persist or work. I have an auto-login feature where I pass the username and password via url to my login page, which auto logs the user into my site via webview (basically keeping the user IN my app). But the cookies don't work, so most of the logged in features don't work even once the user is successfully auto logged in.

I've been reading about enabling cookies, but just don't have time to fix it. I have $25 in my Freelancer account right now for someone who can just help me add the code to make cookies work again when accessing my site via webview.

Thanks!