fixed Windows path

jupyter-openbis-extension/static/connectionDialog.js

@@ -236,7 +236,13 @@ define(
                 default_working_dir = data.notebook_dir + rel_path
             }
             else {
-                default_working_dir = data.notebook_dir + "/" + rel_path
+                if (navigator.platform == "Win32") {
+                    default_working_dir = data.notebook_dir + "\\" + rel_path
+                }
+                else {
+                    default_working_dir = data.notebook_dir + "/" + rel_path
+                }
+
             }
 
             working_dir_in.value = state.working_dir ? state.working_dir : default_working_dir