req.url() always returns production url

[Suyashtnt]

read title. For ms oauth2 i need to send a redirect URL when getting the token and I want to get the URL used programatically instead of somehow hard coding it for dev and prod

        .get_async("/microsoft_auth", |req, ctx| async move {
            let url = req.url().unwrap(); // this is always the production url

[jancespivo]

This causes problem with local development where we need to get real host (ie. localhost:8787)