Warn URL Metric compression is disabled due to use of deprecated finalize function

b1ink0 · westonruter · b1ink0 · commit 7e8ec608da4a · 2025-03-28T17:18:30.000+05:30
Co-authored-by: Weston Ruter &lt;westonruter@google.com&gt;
diff --git a/plugins/optimization-detective/detect.js b/plugins/optimization-detective/detect.js
@@ -709,6 +709,9 @@ export default async function detect( {
 	/** @type {string[]} */
 	const initializingExtensionModuleUrls = [];
 
+	/** @type {boolean} */
+	let extensionHasFinalize = false;
+
 	for ( const extensionModuleUrl of extensionModuleUrls ) {
 		try {
 			/** @type {Extension} */
@@ -744,7 +747,7 @@ export default async function detect( {
 			}
 
 			if ( extension.finalize instanceof Function ) {
-				compressionEnabled = false;
+				extensionHasFinalize = true;
 			}
 		} catch ( err ) {
 			error(
@@ -754,6 +757,13 @@ export default async function detect( {
 		}
 	}
 
+	if ( extensionHasFinalize ) {
+		compressionEnabled = false;
+		warn(
+			'URL Metric compression is disabled because one or more extensions use the deprecated finalize function.'
+		);
+	}
+
 	// Wait for all extensions to finish initializing.
 	const settledInitializePromises = await Promise.allSettled(
 		extensionInitializePromises
