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Stop the Navigation Block Listing All Pages

Prevents the Navigation block from automatically showing a list of every page when no menu is assigned, so unfinished headers stay empty instead of exposing pages.

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Code

add_filter( 'block_core_navigation_render_fallback', '__return_empty_array' );

Notes

Assign a menu to your Navigation block in the Site Editor; until then it renders nothing.

How to add this snippet

  1. Install WPIDE on your WordPress site (it is free) and open Code Snippets.
  2. Use snippet above adds it from the library in one click. Or copy the code into a new snippet with the same code type.
  3. It is added inactive: review the code and settings, then switch it on.

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