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Diffstat (limited to 'node_modules/when/lib/env.js')
| -rw-r--r-- | node_modules/when/lib/env.js | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/node_modules/when/lib/env.js b/node_modules/when/lib/env.js index b5e1af7f8..530307484 100644 --- a/node_modules/when/lib/env.js +++ b/node_modules/when/lib/env.js @@ -47,8 +47,8 @@ define(function(require) { } function hasMutationObserver () { - return (typeof MutationObserver === 'function' && MutationObserver) || - (typeof WebKitMutationObserver === 'function' && WebKitMutationObserver); + return (typeof MutationObserver !== 'undefined' && MutationObserver) || + (typeof WebKitMutationObserver !== 'undefined' && WebKitMutationObserver); } function initMutationObserver(MutationObserver) { |