From a13e7766fce4da5e556d40628f7a335959f93381 Mon Sep 17 00:00:00 2001
From: Min RK <benjaminrk@gmail.com>
Date: Fri, 14 Jul 2017 10:51:14 +0200
Subject: [PATCH] fix leftover `self.exit` in proxy

self.exit is a method on Application, missed copying the proxy code out of the JupyterHub app.
---
 jupyterhub/proxy.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/jupyterhub/proxy.py b/jupyterhub/proxy.py
index ae722262..708e9f2c 100644
--- a/jupyterhub/proxy.py
+++ b/jupyterhub/proxy.py
@@ -433,7 +433,7 @@ class ConfigurableHTTPProxy(Proxy):
                 "The proxy can be installed with `npm install -g configurable-http-proxy`"
                 % self.command
             )
-            self.exit(1)
+            raise
 
         def _check_process():
             status = self.proxy_process.poll()