1 files changed, 3 insertions, 2 deletions
diff --git a/deps/npm/node_modules/bluebird/js/release/util.js b/deps/npm/node_modules/bluebird/js/release/util.js
index 84c28ec475..7ac0e2fa19 100644
--- a/deps/npm/node_modules/bluebird/js/release/util.js
+++ b/deps/npm/node_modules/bluebird/js/release/util.js
@@ -223,10 +223,11 @@ function safeToString(obj) {
 }
 
 function isError(obj) {
-    return obj !== null &&
+    return obj instanceof Error ||
+        (obj !== null &&
            typeof obj === "object" &&
            typeof obj.message === "string" &&
-           typeof obj.name === "string";
+           typeof obj.name === "string");
 }
 
 function markAsOriginatingFromRejection(e) {