Merge pull request #13955 from colemanw/Promise
authorEileen McNaughton <eileen@mcnaughty.com>
Thu, 4 Apr 2019 20:43:13 +0000 (09:43 +1300)
committerGitHub <noreply@github.com>
Thu, 4 Apr 2019 20:43:13 +0000 (09:43 +1300)
Promise Polyfill for older browsers


Trivial merge