Added try/catch for uncaught JSON parse error.

Author: cfnelson

lib/ddp-client.js

@@ -362,8 +362,13 @@ DDPClient.prototype._makeSockJSConnection = function() {
     if (err) {
       self._recoverNetworkError();
     } else if (body) {
-      var info = JSON.parse(body);
-      if(!info.base_url) {
+      var info;
+      try {
+        info = JSON.parse(body);
+      } catch (e) {
+        console.error(e);
+      }
+      if (!info || !info.base_url) {
         // no base_url, then use pure WS handling
         var url = self._buildWsUrl();
         self._makeWebSocketConnection(url);