Steps to reproduce and a minimal demo of the problem

• Enable developer tools on the browser and connect to them from another computer.
• Open the live example from the 5 Min Quickstart. https://angular.io/resources/live-examples/quickstart/ts/plnkr.html
• Wait a few seconds and check the console output.

Current behavior
The "Loading..." text stays on the screen and the app never loads. There is an error in the console "INVALID_STATE_ERR: DOM Exception 11: An attempt was made to use an object that is not, or is no longer, usable."

Expected/desired behavior
The app should display "My First Angular 2 App" and there should not be errors in the console.

Other information
The error is reported from angular2-polyfills line 941. The browser is a fork of an older version of WebKit.