title: proxy "localhost" in Codesandbox.io React Project
body: <p>I want to use spring boot rest services running in my local computer in codesandbox.io React Project.
  to do this in my local system I edit my package.json with
  "proxy": "<a href="http://localhost:8080/" rel="nofollow noreferrer">http://localhost:8080/</a>"</p>
  
  <p>but what should I do to use my local API in codesandbox?</p>