WP_Scripts::add_data( string $handle, string $key, mixed $value ): bool

803	public function add_data( $handle, $key, $value ) {804		if ( ! isset( $this->registered[ $handle ] ) ) {805			return false;806		}807 808		if ( 'strategy' === $key ) {809			if ( ! empty( $value ) && ! $this->is_delayed_strategy( $value ) ) {810				_doing_it_wrong(811					__METHOD__,812					sprintf(813						/* translators: 1: $strategy, 2: $handle */814						__( 'Invalid strategy `%1$s` defined for `%2$s` during script registration.' ),815						$value,816						$handle817					),818					'6.3.0'819				);820				return false;821			} elseif ( ! $this->registered[ $handle ]->src && $this->is_delayed_strategy( $value ) ) {822				_doing_it_wrong(823					__METHOD__,824					sprintf(825						/* translators: 1: $strategy, 2: $handle */826						__( 'Cannot supply a strategy `%1$s` for script `%2$s` because it is an alias (it lacks a `src` value).' ),827						$value,828						$handle829					),830					'6.3.0'831				);832				return false;833			}834		}835		return parent::add_data( $handle, $key, $value );836	}