diff --git a/lib/adapters/xhr.js b/lib/adapters/xhr.js
index 5432cce..28456e6 100644
--- a/lib/adapters/xhr.js
+++ b/lib/adapters/xhr.js
@@ -76,6 +76,17 @@ module.exports = function xhrAdapter(resolve, reject, config) {
     request = null;
   };
 
+  // Handle timeout
+  request.ontimeout = function handleTimeout() {
+    var err = new Error('timeout of ' + config.timeout + 'ms exceeded');
+    err.timeout = config.timeout;
+    err.code = 'ECONNABORTED';
+    reject(err);
+
+    // Clean up request
+    request = null;
+  };
+
   // Add xsrf header
   // This is only done if running in a standard browser environment.
   // Specifically not if we're in a web worker, or react-native.