From d6b1fae50b0408a34f7d1467d6cfe6d68842c6cb Mon Sep 17 00:00:00 2001
From: Opeyemi Ibrahim <opeyemi.khadri@gmail.com>
Date: Mon, 10 Jun 2024 11:00:17 +0100
Subject: [PATCH] Add data prefix to preload attribute -- fixes #6672

---
 inc/Engine/Media/AboveTheFold/Frontend/Controller.php          | 2 +-
 inc/Engine/Optimization/GoogleFonts/AbstractGFOptimization.php | 2 +-
 inc/Engine/Optimization/RUCSS/Controller/UsedCSS.php           | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/inc/Engine/Media/AboveTheFold/Frontend/Controller.php b/inc/Engine/Media/AboveTheFold/Frontend/Controller.php
index 15a425ab5c..0d8ad0d247 100644
--- a/inc/Engine/Media/AboveTheFold/Frontend/Controller.php
+++ b/inc/Engine/Media/AboveTheFold/Frontend/Controller.php
@@ -255,7 +255,7 @@ private function generate_lcp_link_tag_with_sources( $lcp ): array {
 		}
 
 		$tag       = '';
-		$start_tag = '<link rel="preload" rocket-preload as="image" ';
+		$start_tag = '<link rel="preload" data-rocket-preload as="image" ';
 		$end_tag   = ' fetchpriority="high">';
 
 		$sources = [];
diff --git a/inc/Engine/Optimization/GoogleFonts/AbstractGFOptimization.php b/inc/Engine/Optimization/GoogleFonts/AbstractGFOptimization.php
index c2bff25970..519355ff45 100644
--- a/inc/Engine/Optimization/GoogleFonts/AbstractGFOptimization.php
+++ b/inc/Engine/Optimization/GoogleFonts/AbstractGFOptimization.php
@@ -116,7 +116,7 @@ protected function get_font_display_value(): string {
 	 */
 	protected function get_optimized_markup( string $url ): string {
 		return sprintf(
-			'<link rel="preload" rocket-preload as="style" href="%1$s" /><link rel="stylesheet" href="%1$s" media="print" onload="this.media=\'all\'" /><noscript><link rel="stylesheet" href="%1$s" /></noscript>', // phpcs:ignore WordPress.WP.EnqueuedResources.NonEnqueuedStylesheet
+			'<link rel="preload" data-rocket-preload as="style" href="%1$s" /><link rel="stylesheet" href="%1$s" media="print" onload="this.media=\'all\'" /><noscript><link rel="stylesheet" href="%1$s" /></noscript>', // phpcs:ignore WordPress.WP.EnqueuedResources.NonEnqueuedStylesheet
 			$url
 		);
 	}
diff --git a/inc/Engine/Optimization/RUCSS/Controller/UsedCSS.php b/inc/Engine/Optimization/RUCSS/Controller/UsedCSS.php
index f29b032970..9a8ba4a31a 100644
--- a/inc/Engine/Optimization/RUCSS/Controller/UsedCSS.php
+++ b/inc/Engine/Optimization/RUCSS/Controller/UsedCSS.php
@@ -615,7 +615,7 @@ private function preload_links( array $urls ): string {
 		$links = '';
 
 		foreach ( $urls as $url ) {
-			$links .= '<link rel="preload" rocket-preload as="font" href="' . esc_url( $url ) . '" crossorigin>';
+			$links .= '<link rel="preload" data-rocket-preload as="font" href="' . esc_url( $url ) . '" crossorigin>';
 		}
 
 		return $links;