title: vue(axios) trust (or ignore) backend self signed certificate. ERR_CERT_AUTHORITY_INVALID
body: <p>When front(axios) request to api server that secure with self signed certificate, I got <code>ERR_CERT_AUTHORITY_INVALID</code> <strong>error</strong>.</p>
  
  <p>If I write api in browser, it show not safe page(as we expect), after I trust that, vue can request to api without any problem.
  how can i config vue to trust (or ignore) backend self signed certificate?</p>
  
  <p>note: this is not work for me <a href="https://github.com/axios/axios/issues/535#issuecomment-260841069" rel="nofollow noreferrer">https://github.com/axios/axios/issues/535#issuecomment-260841069</a></p>
  
  <p>front: vue</p>
  
  <p>backend: flask</p>