Removed is_rest function in favor of removing the lazy loader filters…

… using the rest_api_init hook

includes/config.php

@@ -597,10 +597,9 @@ function disable_lazyload_in_rest() {
 	if (
 		isset( $lazy_loader )
 		&& $lazy_loader instanceof FlorianBrinkmann\LazyLoadResponsiveImages\Plugin
-		&& is_rest()
 	) {
 		remove_filter( 'the_content', array( $lazy_loader, 'filter_markup' ), 10001 );
 	}
 }
 
-add_action( 'init', 'disable_lazyload_in_rest' );
+add_action( 'rest_api_init', 'disable_lazyload_in_rest' );

includes/utilities.php

@@ -93,32 +93,3 @@ function get_attachment_src_by_size( $id, $size ) {
 	}
 	return $attachment;
 }
-
-
-
-if ( ! function_exists( 'is_rest' ) ) {
-	/**
-	 * Checks if the current request is a WP REST API request.
-	 *
-	 * @return boolean
-	 * @see https://gist.github.com/matzeeable/dfd82239f48c2fedef25141e48c8dc30
-	 */
-	function is_rest() {
-		if (
-			( defined( 'REST_REQUEST' ) && REST_REQUEST )
-			|| (
-				isset( $_GET['rest_route'] )
-				&& strpos( trim( $_GET['rest_route'], '\\/' ), rest_get_url_prefix() , 0 ) === 0
-			)
-		) {
-			return true;
-		}
-
-		global $wp_rewrite;
-		if ( $wp_rewrite === null ) $wp_rewrite = new WP_Rewrite();
-
-		$rest_url = wp_parse_url( trailingslashit( rest_url() ) );
-		$current_url = wp_parse_url( add_query_arg( array() ) );
-		return strpos( $current_url['path'], $rest_url['path'], 0 ) === 0;
-	}
-}