Updated #65 use the bath length instead of the allocated memory buffer length.

Author: niemyjski

dist/exceptionless.node.js

@@ -30,7 +30,7 @@ export class NodeSubmissionAdapter implements ISubmissionAdapter {
     if (request.method === 'POST') {
       options.headers = {
         'Content-Type': 'application/json',
-        'Content-Length': new Buffer(request.data).length
+        'Content-Length': Buffer.byteLength(request.data)
       };
     }