Fixes

Author: PDowney

tests/unit/DomainValidationTest.php

@@ -125,9 +125,29 @@ public function test_resource_hints_use_wordpress_filter_contract(): void {
 
 		$preconnect_hints  = es_optimizer_add_preconnect_resource_hints( array(), 'preconnect' );
 		$dns_prefetch_urls = es_optimizer_add_dns_prefetch_resource_hints( array(), 'dns-prefetch' );
+		$cdn_hint          = $this->findResourceHintByHref( $preconnect_hints, 'https://cdn.example.com' );
 
 		$this->assertContains( array( 'href' => 'https://fonts.gstatic.com', 'crossorigin' => 'anonymous' ), $preconnect_hints );
 		$this->assertContains( array( 'href' => 'https://cdn.example.com' ), $preconnect_hints );
+		$this->assertIsArray( $cdn_hint );
+		$this->assertArrayNotHasKey( 'crossorigin', $cdn_hint );
 		$this->assertContains( 'https://static.example.com', $dns_prefetch_urls );
 	}
+
+	/**
+	 * Find a resource hint by href.
+	 *
+	 * @param array<int, array<string, mixed>|string> $hints Resource hints.
+	 * @param string                                  $href  Hint href to locate.
+	 * @return array<string, mixed>|null Matching hint, if present.
+	 */
+	private function findResourceHintByHref( array $hints, string $href ): ?array {
+		foreach ( $hints as $hint ) {
+			if ( is_array( $hint ) && $href === ( $hint['href'] ?? null ) ) {
+				return $hint;
+			}
+		}
+
+		return null;
+	}
 }