diff --git a/functions.php b/functions.php
index 1d8f4a8..8da9bf5 100644
--- a/functions.php
+++ b/functions.php
@@ -166,8 +166,8 @@ function radiate_scripts() {
 		wp_enqueue_script( 'comment-reply' );
 	}
 
-	wp_enqueue_script( 'html5shiv', get_template_directory_uri() . '/js/html5shiv.js', array(), '3.7.3', false );
-	wp_script_add_data( 'html5shiv', 'conditional', 'lte IE 8' );
+	// Empty handle kept so scripts that list 'html5shiv' as a dependency still load.
+	wp_register_script( 'html5shiv', false, array(), wp_get_theme()->get( 'Version' ), false );
 
 }
 
diff --git a/tests/e2e/specs/homepage/front-page-health.spec.ts b/tests/e2e/specs/homepage/front-page-health.spec.ts
index 929dae9..9e7a5a3 100644
--- a/tests/e2e/specs/homepage/front-page-health.spec.ts
+++ b/tests/e2e/specs/homepage/front-page-health.spec.ts
@@ -50,24 +50,28 @@ test("skip link is the first Tab stop and targets the content region @fresh @hom
   await expect(page.locator("#content")).toHaveCount(1);
 });
 
-// Quarantined: not fixed yet and no issue filed. Drop `.fixme` in the PR that fixes it.
 /**
  * @area homepage
  * @tier fresh
+ * @guards themegrill/radiate-pro#38
  * @source human 2026-09-24
- * @why functions.php:170 registers html5shiv with
+ * @why functions.php registered html5shiv with
  *      wp_script_add_data( 'html5shiv', 'conditional', 'lte IE 8' ), which
  *      WordPress 6.9+ deprecates, so every front-end page prints a
  *      "Deprecated: WP_Dependencies->add_data()" notice when WP_DEBUG_DISPLAY
  *      is on (confirmed on test-theme.local, WP 7.1). Only observable where
  *      debug display is enabled; on a site with it off this passes regardless.
- *      Asserts no PHP notice markup in the body, not the absence of html5shiv.
+ *      Asserts no PHP notice markup anywhere in the response (it is printed
+ *      inside <head>), not the absence of html5shiv.
  */
-test.fixme("front page prints no PHP notices or deprecations @fresh @homepage", async ({
+test("front page prints no PHP notices or deprecations @fresh @homepage", async ({
   page,
 }) => {
-  await page.goto("/");
-  await expect(page.locator("body")).not.toContainText(
-    /(Deprecated|Notice|Warning|Fatal error):\s/,
+  // Read the raw response: PHP prints the notice while wp_head() runs, before
+  // <body>, so a body locator would miss it.
+  const response = await page.goto("/");
+  const html = await response!.text();
+  expect(html).not.toMatch(
+    /(?:^|>|\s)(?:<b>)?(?:Deprecated|Notice|Warning|Fatal error)(?:<\/b>)?:\s/,
   );
 });