Merge pull request #751 from kangax/issue-675
authorAlex Lam S.L <alexlamsl@gmail.com>
Sat, 19 Nov 2016 09:34:24 +0000 (17:34 +0800)
committerGitHub <noreply@github.com>
Sat, 19 Nov 2016 09:34:24 +0000 (17:34 +0800)
utilise Web Worker whenever available


Trivial merge