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/HttpRedirectException.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Net;
+
+namespace EmbedIO
+{
+    /// <summary>
+    /// When thrown, breaks the request handling control flow
+    /// and sends a redirection response to the client.
+    /// </summary>
+#pragma warning disable CA1032 // Implement standard exception constructors - they have no meaning here.
+    public class HttpRedirectException : HttpException
+#pragma warning restore CA1032
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="HttpRedirectException"/> class.
+        /// </summary>
+        /// <param name="location">The redirection target.</param>
+        /// <param name="statusCode">
+        /// <para>The status code to set on the response, in the range from 300 to 399.</para>
+        /// <para>By default, status code 302 (<c>Found</c>) is used.</para>
+        /// </param>
+        /// <exception cref="ArgumentException"><paramref name="statusCode"/> is not in the 300-399 range.</exception>
+        public HttpRedirectException(string location, int statusCode = (int)HttpStatusCode.Found)
+            : base(statusCode)
+        {
+            if (statusCode < 300 || statusCode > 399)
+                throw new ArgumentException("Redirect status code is not valid.", nameof(statusCode));
+
+            Location = location;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="HttpRedirectException"/> class.
+        /// </summary>
+        /// <param name="location">The redirection target.</param>
+        /// <param name="statusCode">One of the redirection status codes, to be set on the response.</param>
+        /// <exception cref="ArgumentException"><paramref name="statusCode"/> is not a redirection status code.</exception>
+        public HttpRedirectException(string location, HttpStatusCode statusCode)
+            : this(location, (int)statusCode)
+        {
+        }
+
+        /// <summary>
+        /// Gets the URL where the client will be redirected.
+        /// </summary>
+        public string Location { get; }
+
+        /// <inheritdoc />
+        public override void PrepareResponse(IHttpContext context)
+        {
+            context.Redirect(Location, StatusCode);
+        }
+    }
+}