From 1e53c1f92445b0e5ddf762ac995936eca7f1b0e3 Mon Sep 17 00:00:00 2001
From: Thomas Kluyver <takowl@gmail.com>
Date: Thu, 13 Nov 2014 14:25:28 -0800
Subject: [PATCH] Re-raise errors with throw instead of Promise.reject()

---
 IPython/html/static/services/contents.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/IPython/html/static/services/contents.js b/IPython/html/static/services/contents.js
index c2ee4ba35..11c225511 100644
--- a/IPython/html/static/services/contents.js
+++ b/IPython/html/static/services/contents.js
@@ -129,9 +129,9 @@ define([
                 // TODO: update IPEP27 to specify errors more precisely, so
                 // that error types can be detected here with certainty.
                 if (error.xhr.status === 400) {
-                    return Promise.reject(new Contents.DirectoryNotEmptyError());
+                    throw new Contents.DirectoryNotEmptyError();
                 }
-                return Promise.reject(error);
+                throw error;
             }
         );
     };