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/IHttpContextHandler.cs

@@ -0,0 +1,20 @@
+using System.Threading.Tasks;
+
+namespace EmbedIO
+{
+    /// <summary>
+    /// <para>Represents an object that can handle a HTTP context.</para>
+    /// <para>This API supports the EmbedIO infrastructure and is not intended to be used directly from your code.</para>
+    /// </summary>
+    public interface IHttpContextHandler
+    {
+        /// <summary>
+        /// <para>Asynchronously handles a HTTP context, generating a suitable response
+        /// for an incoming request.</para>
+        /// <para>This API supports the EmbedIO infrastructure and is not intended to be used directly from your code.</para>
+        /// </summary>
+        /// <param name="context">The HTTP context.</param>
+        /// <returns>A <see cref="Task"/> representing the ongoing operation.</returns>
+        Task HandleContextAsync(IHttpContextImpl context);
+    }
+}