preload only lcp urls and fetch priority only on lcp

Author: selul

inc/tag_replacer.php

@@ -433,21 +433,15 @@ public function regular_tag_replace( $new_tag, $original_url, $new_url, $optml_a
 
 		if ( $this->settings->is_lazyload_type_viewport() ) {
 			$image_id                   = $this->get_id_by_url( $original_url );
-			$is_in_all_viewports        = Optml_Manager::instance()->page_profiler->is_in_all_viewports( $image_id );
 			$is_lcp_image               = Optml_Manager::instance()->page_profiler->is_lcp_image_in_all_viewports( $image_id );
 			$no_viewport_data_available = ! Optml_Manager::instance()->page_profiler->check_data_availability();
 
 			if ( OPTML_DEBUG ) {
-				if ( $is_in_all_viewports ) {
-					do_action( 'optml_log', 'Adding preload priority for image ' . $original_url . '|' . $image_id );
-				} elseif ( $is_lcp_image ) {
-					do_action( 'optml_log', 'Adding preload image is LCP ' . $original_url . '|' . $image_id );
-				}
+					do_action( 'optml_log', 'Adding fetchpriority image is LCP ' . $original_url . '|' . $image_id );
 			}
 
-			if ( $is_in_all_viewports || $is_lcp_image ) {
+			if ( $is_lcp_image ) {
 				$new_tag = preg_replace( '/<img/im', $is_slashed ? '<img fetchpriority=\"high\"' : '<img fetchpriority="high"', $new_tag );
-				Links::add_id( $image_id, 'high' ); // collect ID for preload.
 			}
 		}
 

inc/v2/BgOptimizer/Lazyload.php

@@ -41,7 +41,6 @@ public static function get_personalized_css( $data ) {
 				do_action( 'optml_log', 'LCP data: ' . $device . ' ' . print_r( $lcp_data, true ) );
 			}
 			$css_selectors[ $device ] = [];
-			$preload_urls[ $device ] = [];
 			foreach ( $personalized_selectors as $selector => $above_fold_selectors ) {
 				if ( ! isset( $lazyload_selectors[ $selector ] ) ) {
 					continue;
@@ -51,12 +50,12 @@ public static function get_personalized_css( $data ) {
 				} else {
 					foreach ( $above_fold_selectors as $above_fold_selector => $bg_urls ) {
 						$css_selectors[ $device ][] = 'html ' . strip_tags( $selector ) . ':not(' . strip_tags( $above_fold_selector ) . '):not(.optml-bg-lazyloaded)';
-						$preload_urls[ $device ] = array_merge( $preload_urls[ $device ], $bg_urls );
 					}
 				}
 			}
+
+			$preload_urls[ $device ] = [];
 			$css_selectors[ $device ] = array_unique( $css_selectors[ $device ] );
-			$preload_urls[ $device ] = array_unique( $preload_urls[ $device ] );
 			if ( isset( $lcp_data['type'] ) && $lcp_data['type'] === 'bg' ) {
 				if ( ! empty( $lcp_data['bgSelector'] ) ) {
 					$css_selectors[ $device ] = array_map(