[BUG] POST request not working with Fetch::Request

[SkyfallWasTaken]

Is there an existing issue for this?

• I have searched the existing issues

What version of workers-rs are you using?

0.3.0

What version of wrangler are you using?

3.63.1

Describe the bug

POST requests sent using Fetch::Request are never sent, and no error is emitted

Steps To Reproduce

1. Use this example code:

    let request = Request::new_with_init(
        &webhook_url,
        RequestInit::new()
            .with_body(Some(serde_wasm_bindgen::to_value(
                &json!({ "text": "hi"}),
            )?))
            .with_method(Method::Post),
    )?;
    Fetch::Request(request).send().await?;

2. Observe how the request is never sent, and code execution continues after the request is "sent" and awaited

[SkyfallWasTaken]

The temporary workaround for this is to use a library like reqwest