# Sticky top navigation does not work

## Description

The Shopping Experience layout has been assigned but the CMS blocks are not displayed in the storefront.

#### Basic information

The sticky top navigation and the Shopping Experience Header from ThemeWare® are displayed and positioned using JavaScript.

## Cause

If the sticky top navigation is not displayed, there is a 99.9% chance that you will find one or more error messages in the browser DevTools relating to JavaScript errors.

![](/files/0u1JKGKhbbesv8RASFAk)

JavaScript errors caused by third-party extensions can affect ThemeWare® JavaScript features. In this case, the sticky top navigation is obviously affected.

## Solution

Deactivate (not uninstall!) all extensions used. If the problem no longer exists after deactivating all extensions, the issue is probably due to an extension.

You can find more information in the article [Examining extensions or plugins](/knowledge-base/tutorials/solving-errors/examining-extensions-or-plugins.md).


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