Check that err is defined before performing any op

Author: JonathanBennett

lib/prerenderRedisCache.js

@@ -36,13 +36,16 @@ client.on("ready", function () {
 });
 
 client.on("end", function (err) {
-  if(last_end_message == err.toString()) { 
+  if(err) {
+    err = err.toString();
+    if(last_end_message == err) { 
       // Swallow the error for now
-  } else { 
-      last_end_message = err.toString();
+    } else { 
+      last_end_message = err;
       redis_online = false;
       console.log("Redis Cache Conncetion Closed. Will now bypass redis until it's back.");
     }
+  }
 });
 
 module.exports = {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "prerender-redis-cache",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "Prerender plugin for Redis caching",
   "main": "index.js",
   "scripts": {