1 files changed, 6 insertions, 1 deletions
diff --git a/lib/ot/server.js b/lib/ot/server.js
index 608d434b..fec3b6f0 100644
--- a/lib/ot/server.js
+++ b/lib/ot/server.js
@@ -1,3 +1,5 @@
+var config = require('../../config');
+
 if (typeof ot === 'undefined') {
   var ot = {};
 }
@@ -28,7 +30,10 @@ ot.Server = (function (global) {
     }
 
     // ... and apply that on the document.
-    this.document = operation.apply(this.document);
+    var newDocument = operation.apply(this.document);
+    // ignore if exceed the max length of document
+    if(newDocument.length > config.documentmaxlength) return;
+    this.document = newDocument;
     // Store operation in history.
     this.operations.push(operation);