UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/49.0.2623.108 Chrome/49.0.2623.108 Safari/537.36

Steps to reproduce the problem:
1. open console
2. declare a ES6 class: `class Test {}`
3. create a instance of the class: `new Test()`
4. it says "Uncaught ReferenceError: Test is not defined(…)"

What is the expected behavior?
A instance of the class should be successfully created.

What went wrong?
The class is strangely lost after being declaration.

Did this work before? N/A 

Chrome version: 49.0.2623.108  Channel: stable
OS Version: Ubuntu 16.04
Flash Version:
 

Deleted: Screenshot from 2016-05-18 16-56-21.png 16.3 KB

	Screenshot from 2016-05-18 16-56-21.png 16.3 KB View Download