X-Git-Url: https://git.auder.net/?p=vchess.git;a=blobdiff_plain;f=client%2Fsrc%2Futils%2Fajax.js;h=5b460784c79a63263259cfd36d1cd6898483168e;hp=01ea84935f132ebf7713cbf4f7a242eea3ffe791;hb=b4de2e730539cadbff94a42eccfb9cb046cbf810;hpb=ed9c9c3741ec8b03cf899eae529216a2520bba0d

diff --git a/client/src/utils/ajax.js b/client/src/utils/ajax.js
index 01ea8493..5b460784 100644
--- a/client/src/utils/ajax.js
+++ b/client/src/utils/ajax.js
@@ -17,15 +17,16 @@ function toQueryString(data)
 export function ajax(url, method, data, success, error)
 {
 	let xhr = new XMLHttpRequest();
-	if (typeof(data) === "function") //no data
+	if (data === undefined || typeof(data) === "function") //no data
 	{
 		error = success;
 		success = data;
 		data = {};
 	}
+  if (!success)
+    success = () => {}; //by default, do nothing
 	if (!error)
 		error = errmsg => { alert(errmsg); };
-
 	xhr.onreadystatechange = function() {
 		if (this.readyState == 4 && this.status == 200)
 		{