#292 fix 864dc00 which broke the connect page

Author: totaam

html5/connect.html

@@ -778,17 +778,17 @@ <h4 class="panel-title">Advanced options</h4>
       function fill_form(default_settings) {
         const getparam = function (prop) {
           let v = Utilities.getparam(prop);
-          if (v == null && prop in default_settings) {
+          if (v === undefined && prop in default_settings) {
             v = default_settings[prop];
           }
           return v;
         };
         const getboolparam = function (prop, default_value) {
           let v = Utilities.getparam(prop);
-          if (v == null && prop in default_settings) {
+          if (v === undefined && prop in default_settings) {
             v = default_settings[prop];
           }
-          if (v === null) {
+          if (v === undefined) {
             return default_value;
           }
           return (