block_core_navigation_render_fallback – filter

Filters the fallback experience for the Navigation block. Returning a falsey value will opt out of the fallback and cause the block not to render. To customise the blocks provided return an array of blocks – these should be valid children of the `core/navigation` block.

Parameters

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( 5.9.0 ) . .
default
( array[] ) fallback blocks provided by the default block mechanic. . . .
API Letters: ,,,,

Implementers