Got at least one data fetching method working; turns out, we can't use a patched LogicStack to get the data

Vendor/EmbedIO-3.5.2/Net/Internal/SystemCookieCollection.cs

@@ -0,0 +1,56 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+
+namespace EmbedIO.Net.Internal
+{
+    /// <summary>
+    /// Represents a wrapper for <c>System.Net.CookieCollection</c>.
+    /// </summary>
+    /// <seealso cref="ICookieCollection" />
+    internal sealed class SystemCookieCollection : ICookieCollection
+    {
+        private readonly CookieCollection _collection;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="SystemCookieCollection"/> class.
+        /// </summary>
+        /// <param name="collection">The cookie collection.</param>
+        public SystemCookieCollection(CookieCollection collection)
+        {
+            _collection = collection;
+        }
+
+        /// <inheritdoc />
+        public int Count => _collection.Count;
+
+        /// <inheritdoc />
+        public bool IsSynchronized => _collection.IsSynchronized;
+
+        /// <inheritdoc />
+        public object SyncRoot => _collection.SyncRoot;
+
+        /// <inheritdoc />
+        public Cookie? this[string name] => _collection[name];
+
+        /// <inheritdoc />
+        IEnumerator<Cookie> IEnumerable<Cookie>.GetEnumerator() => _collection.OfType<Cookie>().GetEnumerator();
+
+        /// <inheritdoc />
+        public IEnumerator GetEnumerator() => _collection.GetEnumerator();
+
+        /// <inheritdoc />
+        public void CopyTo(Array array, int index) => _collection.CopyTo(array, index);
+
+        /// <inheritdoc />
+        public void CopyTo(Cookie[] array, int index) => _collection.CopyTo(array, index);
+
+        /// <inheritdoc />
+        public void Add(Cookie cookie) => _collection.Add(cookie);
+
+        /// <inheritdoc />
+        public bool Contains(Cookie cookie) => _collection.OfType<Cookie>().Contains(cookie);
+    }
+}