Deno Oak Disable Cors

Question

I am trying to \'connect\' my small React JS app with my Deno API backend on my local environment with fetch().

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Answer 1

placeapp.use(oakCors()) before your routes like this:

app.use(oakCors())
app.use(route.routes())

this is allow all CORS before to manage the routes

Answer 2

This works just fine:

app.use(oakCors({ origin: "*" }));

Answer 3

For me, I had to first pass oakCors configuration to the app and then the routes.

app.use(oakCors({
    origin: 'http://localhost:4200',
    optionsSuccessStatus: 200,
}));
app.use(router.routes());

Answer 4

Solution in my case was pretty easy.

I had to import oakCors into my Deno API app.ts

import { oakCors } from "https://deno.land/x/cors/mod.ts";

after that, just add the excluded origin after app instantiation:

app.use(
    oakCors({
      origin: "http://localhost:3000"
    }),
);

NOTE: I tried to set origin to origin: false and that did not work in my case.

For more options on Deno CORS here is a link: https://deno.land/x/cors