diff --git a/lib/compat/wordpress-6.0/class-wp-webfonts-provider-local.php b/lib/compat/wordpress-6.0/class-wp-webfonts-provider-local.php
index 6d1da877ae6d48..4a48332ba9d869 100644
--- a/lib/compat/wordpress-6.0/class-wp-webfonts-provider-local.php
+++ b/lib/compat/wordpress-6.0/class-wp-webfonts-provider-local.php
@@ -227,9 +227,9 @@ private function compile_src( $font_family, array $value ) {
 		$src = "local($font_family)";
 
 		foreach ( $value as $item ) {
-
-			if ( 0 === strpos( $item['url'], get_site_url() ) ) {
-				$item['url'] = wp_make_link_relative( $item['url'] );
+			if ( 0 === strpos( $item['url'], 'file:./' ) ) {
+				$absolute_path_to_url = get_stylesheet_directory_uri() . '/' . str_replace( 'file:./', '', $item['url'] );
+				$item['url']          = wp_make_link_relative( $absolute_path_to_url );
 			}
 
 			$src .= ( 'data' === $item['format'] )
diff --git a/lib/compat/wordpress-6.0/register-webfonts-from-theme-json.php b/lib/compat/wordpress-6.0/register-webfonts-from-theme-json.php
index 6547c62c2f8981..a11f34c4ea9207 100644
--- a/lib/compat/wordpress-6.0/register-webfonts-from-theme-json.php
+++ b/lib/compat/wordpress-6.0/register-webfonts-from-theme-json.php
@@ -41,19 +41,6 @@ function gutenberg_register_webfonts_from_theme_json() {
 			$font_family['fontFace'] = (array) $font_family['fontFace'];
 
 			foreach ( $font_family['fontFace'] as $font_face ) {
-				// Check if webfonts have a "src" param, and if they do account for the use of "file:./".
-				if ( ! empty( $font_face['src'] ) ) {
-					$font_face['src'] = (array) $font_face['src'];
-
-					foreach ( $font_face['src'] as $src_key => $url ) {
-						// Tweak the URL to be relative to the theme root.
-						if ( 0 !== strpos( $url, 'file:./' ) ) {
-							continue;
-						}
-						$font_face['src'][ $src_key ] = get_theme_file_uri( str_replace( 'file:./', '', $url ) );
-					}
-				}
-
 				// Convert keys to kebab-case.
 				foreach ( $font_face as $property => $value ) {
 					$kebab_case               = _wp_to_kebab_case( $property );