title: Multiple fields with same key in query params (axios request)?
body: <p>So the backend (not under my control) requires a query string like this:</p>
  <pre class="lang-none prettyprint-override"><code>http://example.com/?foo=5&amp;foo=2&amp;foo=11
  </code></pre>
  <p>But <code>axios</code> uses a JS object to send the request params:</p>
  <pre class="lang-js prettyprint-override"><code>axios.get('http://example.com/', { foo: 5 });
  </code></pre>
  <p>And obviously an object can't have multiple fields with the same key.</p>
  <p>How can I send a request with multiple fields with the same key?</p>