UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36

Steps to reproduce the problem:
1. Using react with webpack dev server
2. Using "#source-map" for devtool config

What is the expected behavior?
The mapping shown in source inspector should match the actual file content

What went wrong?
The source file tree is shown but mapping for files to contents are off, which wasn't the case prior to upgrading to v.51

Did this work before? Yes v49 (possibly v50)

Chrome version: 51.0.2704.103  Channel: stable
OS Version: OS X 10.10.5
Flash Version: Shockwave Flash 22.0 r0