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/Authentication/BasicAuthenticationModule.cs

@@ -0,0 +1,46 @@
+using System;
+using System.Collections.Concurrent;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace EmbedIO.Authentication
+{
+    /// <summary>
+    /// Simple HTTP basic authentication module that stores credentials
+    /// in a <seealso cref="ConcurrentDictionary{TKey,TValue}"/>.
+    /// </summary>
+    public class BasicAuthenticationModule : BasicAuthenticationModuleBase
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="BasicAuthenticationModule"/> class.
+        /// </summary>
+        /// <param name="baseRoute">The base route.</param>
+        /// <param name="realm">The authentication realm.</param>
+        /// <remarks>
+        /// <para>If <paramref name="realm"/> is <see langword="null"/> or the empty string,
+        /// the <see cref="BasicAuthenticationModuleBase.Realm">Realm</see> property will be set equal to
+        /// <see cref="IWebModule.BaseRoute">BaseRoute</see>.</para>
+        /// </remarks>
+        public BasicAuthenticationModule(string baseRoute, string? realm = null)
+            : base(baseRoute, realm)
+        {
+        }
+
+        /// <summary>
+        /// Gets a dictionary of valid user names and passwords.
+        /// </summary>
+        /// <value>
+        /// The accounts.
+        /// </value>
+        public ConcurrentDictionary<string, string> Accounts { get; } = new ConcurrentDictionary<string, string>(StringComparer.InvariantCulture);
+
+        /// <inheritdoc />
+        protected override Task<bool> VerifyCredentialsAsync(string path, string userName, string password, CancellationToken cancellationToken)
+            => Task.FromResult(VerifyCredentialsInternal(userName, password));
+
+        private bool VerifyCredentialsInternal(string userName, string password)
+            => userName != null
+            && Accounts.TryGetValue(userName, out var storedPassword)
+            && string.Equals(password, storedPassword, StringComparison.Ordinal);
+    }
+}