Prevent Page Reload on Module Selection DNN 9 - telerik

Question

When I click on a module inside of the module selection dialog, DNN refreshes the page (before the hovering, draggable element appears on the page). This only happens using our skin (https://github.com/2sic/dnn-theme-bootstrap3-instant).
DNN is looking for the element #dnn_ContentPane_SyncPanel (which seems to be an ajax wrapper) with Teleriks findComponent method. Because the element can't be found, DNN performs a page reload.
Our skins content pane:
<div id="ContentPane" runat="server" containertype="G" containername="Invisible Container" containersrc="default.ascx"></div>
The DNN code, that triggers the reload (last function call):
refreshPane: function (paneName, args, callback, callOnReload) {
var paneId;
if (!paneName) {
paneId = this.getModuleManager().getPane().attr('id');
} else {
paneId = this.getPaneById(paneName).attr('id');
}
var pane = $('#' + paneId);
var parentPane = pane.data('parentpane');
if (parentPane) {
this.refreshPane(parentPane, args, callback);
return;
}
//set module manager to current refresh pane.
this._moduleManager = pane.data('dnnModuleManager');
var ajaxPanel = $find(paneId + "_SyncPanel");
if (ajaxPanel) {
//remove action menus from DOM bbefore fresh pane.
var handler = this;
pane.find('div.DnnModule').each(function () {
var moduleId = handler._moduleManager._findModuleId($(this));
$('#moduleActions-' + moduleId).remove();
});
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(this._refreshCompleteHandler);
this._refreshPaneId = paneId;
this._refreshCallback = callback;
ajaxPanel.ajaxRequest(args);
} else {
//save the args into cookie, after page reload then catch the cookie
//and float the module for drag
if (args && !this._noFloat) {
this._setCookie('CEM_CallbackData', args);
}
if (callOnReload && typeof callback == "function") {
callback.call($('#' + paneId), [true]);
}
location.reload();
}
}

Answer 1

After some time, we found out what the issue was.
Our skin was using the <%=SkinPath%> syntax instead of <%#SkinPath%>, which caused DNN to force a reload. This probably has to do with the lifecycle of the document.