Error: x-deno-subhost header must be set

[NicoCaldo]

After correctly deploying an edge function using Deno, I'm seeing an error when it's called Error: x-deno-subhost header must be set

What is it? I can't find anything that cites this error/header

[igorbdl]

Hey @NicoCaldo, could you please clarify in which provider this edge function is deployed? Many thanks

[NicoCaldo]

The function is deployed on Supabase Edge Function and it looks like

import { Hono } from "jsr:@hono/hono";
import { serve } from "https://esm.sh/[email protected]/hono";
import { functions, inngest } from "./inngest.ts";

const functionName = '<function-name>'
const app = new Hono().basePath("/${functionName}")

app.on(
  ["GET", "PUT", "POST"],
  "/api/inngest",
  serve({
    client: inngest,
    functions,
  }),
);

Deno.serve(app.fetch);

it manages an Inngest deployment. When I call an Inngest function the error occurred. I'm trying to understand where the error comes from. If it's the Inngest backend that can't connect to the Edge Function for some reason or the other way around