bug in example enable_cors.rs

[Dominuskernel]

In this code:

fn enable_cors<'mw>(_req: &mut Request, mut res: Response<'mw>) -> MiddlewareResult<'mw> {
    res.set(AccessControlAllowOrigin::Any);
    res.set(AccessControlAllowHeaders(vec![
        "Origin".into(),
        "X-Requested-With".into(),
        "Content-Type".into(),
        "Accept".into(),
    ]));
    res.next_middleware()
}

I get this error:

the trait `modifier::Modifier<nickel::response::Response<'_>>` is not implemented for the type `hyper::header::common::access_control_all
ow_origin::AccessControlAllowOrigin` [E0277]
src/main.rs:8     res.set(AccessControlAllowOrigin::Any);

You tried to use a type which doesn't implement some trait in a place which
expected that trait.

And it is exactly as the example.
Maybe this example is wrong.

[Kevin Butler]

This is likely due to having hyper = "*" in your Cargo.toml, while nickel was previously using 0.6. You should be able to fix it by changing to hyper = "0.6", or by upgrading nickel to the newly published 0.8. You might need a cargo update to get things working.

[Dominuskernel]

You right. Thank you.

[Kevin Butler]

Alright :) I will close this, feel free to let us know about any future issues!