Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
I am just adding the docs for the proxy feature for 7.3 🙂 The release is out as unstable (gives us some time to update screenshots, write the blog post, update docs etc), so I will give it a few days before it can be ready for general use.