title: Is it possible to intercept the "typeof" operation with an ES2016 Proxy?
body: <p>Is it possible to define a handler property that intercepts <code>typeof proxyObject</code>? None of the listed traps at <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Proxy/handler" rel="noreferrer">Mozilla</a> list it as an interception.</p>