diff --git a/src/node/hooks/express/apicalls.js b/src/node/hooks/express/apicalls.js
index 0971a877b..db0fc81f6 100644
--- a/src/node/hooks/express/apicalls.js
+++ b/src/node/hooks/express/apicalls.js
@@ -1,5 +1,6 @@
 var log4js = require('log4js');
 var apiLogger = log4js.getLogger("API");
+var clientLogger = log4js.getLogger("client");
 var formidable = require('formidable');
 var apiHandler = require('../../handler/APIHandler');
 
@@ -42,10 +43,10 @@ exports.expressCreateServer = function (hook_name, args, cb) {
     });
   });
 
-  //The Etherpad client side sends information about how a disconnect happen
+  //The Etherpad client side sends information about how a disconnect happened
   args.app.post('/ep/pad/connection-diagnostic-info', function(req, res) {
     new formidable.IncomingForm().parse(req, function(err, fields, files) { 
-      console.log("DIAGNOSTIC-INFO: " + fields.diagnosticInfo);
+      clientLogger.info("DIAGNOSTIC-INFO: " + fields.diagnosticInfo);
       res.end("OK");
     });
   });
@@ -53,7 +54,12 @@ exports.expressCreateServer = function (hook_name, args, cb) {
   //The Etherpad client side sends information about client side javscript errors
   args.app.post('/jserror', function(req, res) {
     new formidable.IncomingForm().parse(req, function(err, fields, files) { 
-      console.error("CLIENT SIDE JAVASCRIPT ERROR: " + fields.errorInfo);
+      try {
+        var data = JSON.parse(fields.errorInfo)
+      }catch(e){
+        return res.end()
+      }
+      clientLogger.warn(data.msg+' --', data);
       res.end("OK");
     });
   });