title: Axios config default GET param
body: <p>I'm using Axios in my VueJS application and I want to add a default GET param in my request. I send my API-KEY through the URL <code>?api-key=secret</code> and I don't want to specify this parameter each time.</p>
  
  <p>I see in the documentation that we can set <a href="https://github.com/axios/axios#global-axios-defaults" rel="noreferrer">Global custom defaults</a>. With that we don't have to specify the header each time. But can we do the same for get param ?</p>