bp_redirect_canonical()

function bp_redirect_canonical() {

	/**
	 * Filters whether or not to do canonical redirects on BuddyPress URLs.
	 *
	 * @since BuddyPress 1.6.0
	 *
	 * @param bool $value Whether or not to do canonical redirects. Default true.
	 */
	if ( !bp_is_blog_page() && apply_filters( 'bp_do_redirect_canonical', true ) ) {
		// If this is a POST request, don't do a canonical redirect.
		// This is for backward compatibility with plugins that submit form requests to
		// non-canonical URLs. Plugin authors should do their best to use canonical URLs in
		// their form actions.
		if ( !empty( $_POST ) ) {
			return;
		}

		// Build the URL in the address bar.
		$requested_url  = bp_get_requested_url();

		// Stash query args.
		$url_stack      = explode( '?', $requested_url );
		$req_url_clean  = $url_stack[0];
		$query_args     = isset( $url_stack[1] ) ? $url_stack[1] : '';

		$canonical_url  = bp_get_canonical_url();

		// Only redirect if we've assembled a URL different from the request.
		if ( $canonical_url !== $req_url_clean ) {

			$bp = buddypress();

			// Template messages have been deleted from the cookie by this point, so
			// they must be readded before redirecting.
			if ( isset( $bp->template_message ) ) {
				$message      = stripslashes( $bp->template_message );
				$message_type = isset( $bp->template_message_type ) ? $bp->template_message_type : 'success';

				bp_core_add_message( $message, $message_type );
			}

			if ( !empty( $query_args ) ) {
				$canonical_url .= '?' . $query_args;
			}

			bp_core_redirect( $canonical_url, 301 );
		}
	}
}