With the popularity of React, the React team have released a browser extension for Chrome and Firefox that provides a way to inspect the React tree from inside the developer tools (see https://github.com/facebook/react-devtools). It is my understanding, that this can't be provided for Safari as there's no extension hooks available in the Inspector. My request is that hooks are added that can support this, and other, extensions.
<rdar://problem/25737162>
*** This bug has been marked as a duplicate of bug 153515 ***