--- a/web/data/cubicweb.ajax.js	Fri May 15 23:05:54 2015 +0200
+++ b/web/data/cubicweb.ajax.js	Tue Jun 23 13:08:48 2015 +0200
@@ -500,7 +500,7 @@
 function unloadPageData() {
     // NOTE: do not make async calls on unload if you want to avoid
     //       strange bugs
-    loadRemote(AJAX_BASE_URL, ajaxFuncArgs('unload_page_data'), 'GET', true);
+    loadRemote(AJAX_BASE_URL, ajaxFuncArgs('unload_page_data'), 'POST', true);
 }
 
 function removeBookmark(beid) {