Updating to beta 6: Maximum call stack size exceeded

Hi there,

I recently updated my Ionic 2 installation from beta 3 to beta 6. I followed the update guide here: https://forum.ionicframework.com/t/ionic-2-projects-updating-to-beta-6/50049; however, when I run “ionic serve” I get a “Maximum call stack size exceeded” error, and my app fails to load in-browser.

I understand this may have something to do with the inclusion of Angular2 Polyfills relating to zone.js and/or reflect-metadata, but am unsure as to how I can resolve this issue. Any ideas?