Cloudflare Developers•5mo ago

HTTP Fetch Request

Hi there whenever I try to make a fetch request to my HTTP website with my cloudfare worker, it returns error code: 521

7 Replies

Chaika•5mo ago

What are you trying to fetch, exactly? Workers have certain restrictions on outgoing fetches with non-standard ports for example

Mr. Goodman•5mo ago

    async getOrderQueue() {
        return await(await fetch(
            `http://us1.bot-hosting.net:20720/order_queue`,
            {
                method: "GET"
            }
        )).text();
    }

    async getOrderQueue() {
        return await(await fetch(
            `http://us1.bot-hosting.net:20720/order_queue`,
            {
                method: "GET"
            }
        )).text();
    }

i have to use that port

Chaika•5mo ago

There's a nice flow chart here you can follow

Mr. Goodman•5mo ago

Chaika•5mo ago

same-zone means same Cloudflare website, ex only a worker running on bot-hosting.net on a custom domain/route can fetch non-standard ports

Mr. Goodman•5mo ago

so i cant request because of its port?

Chaika•5mo ago

yes, you workaround it by adding your own proxy in the middle that your worker calls, ex: Worker -> Your app on a standard port -> non-standard port request, using nginx or something else to proxy the requests also really shouldn't be using insecure http

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HTTP Fetch Request