diff --git a/tests/site-archive.test.ts b/tests/site-archive.test.ts
index b8a68d1..5df6685 100644
--- a/tests/site-archive.test.ts
+++ b/tests/site-archive.test.ts
@@ -61,10 +61,12 @@ test("actual tar retains both the previous entry and its lazy imports", async t
   await check(await archive(t, members()));
 });
 
-test("v2 accepts only changing Cloudflare JSD request metadata while preserving all HTML and script checks", async t => {
-  const jsd = (ray: string, time: string) => `<script>var d=b.createElement('script');d.innerHTML="window.__CF$cv$params={r:'${ray}',t:'${time}'};var a=document.createElement('script');a.src='/cdn-cgi/challenge-platform/scripts/jsd/main.js';document.getElementsByTagName('head')[0].appendChild(a);";</script>`;
-  const captured = shell(oldName).replace("</body>", jsd("a4942470f8500900", "MTc5MTc4NzUzMg==") + "</body>");
-  const active = captured.replace("a4942470f8500900", "a49426f59e37cb83").replace("MTc5MTc4NzUzMg==", "MTc5MTc4NzYzNg==");
+for (const capturedWrapper of ["legacy", "parent-location"]) for (const activeWrapper of ["legacy", "parent-location"]) test(`v2 accepts known Cloudflare JSD wrappers (${capturedWrapper} to ${activeWrapper})`, async t => {
+  const continuation = (wrapper: string) => wrapper === "legacy" ? "var a=document.createElement('script');a.src='/cdn-cgi/challenge-platform/scripts/jsd/main.js';document.getElementsByTagName('head')[0].appendChild(a);"
+    : "var l=window.parent.location,o;try{o=new URL(l.origin).origin}catch(e){try{o=new URL(new URL(l.href).origin).origin}catch(e){o=''}}var u='/cdn-cgi/challenge-platform/scripts/jsd/main.js?ray=REQUEST_RAY',a=document.createElement('script');a.src=o?new URL(u,o).href:u;document.getElementsByTagName('head')[0].appendChild(a);";
+  const jsd = (wrapper: string, ray: string, time: string) => `<script>var d=b.createElement('script');d.innerHTML="window.__CF$cv$params={r:'${ray}',t:'${time}'};${continuation(wrapper).replace("REQUEST_RAY", ray)}";</script>`;
+  const captured = shell(oldName).replace("</body>", jsd(capturedWrapper, "a4942470f8500900", "MTc5MTc4NzUzMg==") + "</body>");
+  const active = shell(oldName).replace("</body>", jsd(activeWrapper, "a49426f59e37cb83", "MTc5MTc4NzYzNg==") + "</body>");
   const probe = previousShellProbe(captured, new URL(origin));
   const entries = members().map(item => item.name.endsWith("previous-shell.html") ? { ...item, text:probe }
     : item.name.endsWith("previous-shell.json") ? { ...item, text:JSON.stringify({version:2,capturedAt:now,sourcePath:"/next/relay-forge/",sourceSha256:sha(normalizePublicShell(captured)),probeSha256:sha(probe)}) } : item);
@@ -72,7 +74,9 @@ test("v2 accepts only changing Cloudflare JSD request metadata while preserving
   const serve = (html: string): typeof fetch => async (input, options) => String(input).endsWith("retained-releases.json") ? server()(input, options)
     : new Response(html, {headers:{"content-type":"text/html"}});
   await check(tar, serve(active));
-  for (const altered of [active.replace("jsd/main.js", "jsd/altered.js"), active.replace("</head>", "<script>malicious()</script></head>"), active.replace(oldName, newName), active.replace("MTc5MTc4NzYzNg==", "YWxlcnQoMSk=")]) {
+  const alterations = [active.replace("jsd/main.js", "jsd/altered.js"), active.replace("</head>", "<script>malicious()</script></head>"), active.replace(oldName, newName), active.replace("MTc5MTc4NzYzNg==", "YWxlcnQoMSk="), active.replace("document.getElementsByTagName('head')[0].appendChild(a);", "document.body.appendChild(a);")];
+  if (activeWrapper === "parent-location") alterations.push(active.replace("?ray=a49426f59e37cb83", "?ray=invalid"));
+  for (const altered of alterations) {
     await assert.rejects(check(tar, serve(altered)), /Previous-shell/);
   }
   const legacy = entries.map(item => item.name.endsWith("previous-shell.json") ? {...item,text:JSON.stringify({version:1,capturedAt:now,sourcePath:"/next/relay-forge/",sourceSha256:sha(captured),probeSha256:sha(probe)})}:item);
diff --git a/tools/check-site-archive.mts b/tools/check-site-archive.mts
index ddc92b6..8007b49 100644
--- a/tools/check-site-archive.mts
+++ b/tools/check-site-archive.mts
@@ -86,8 +86,9 @@ export async function assertSiteArchiveSafe(options: {
 if (process.argv[1] && pathToFileURL(resolve(process.argv[1])).href === import.meta.url) {
   assertSiteArchiveSafe({ archive: process.argv[2] || "", siteUrl: process.argv[3] || "" }).then(() => {
     console.log("Deployment archive retention verified.");
-  }).catch(() => {
+  }).catch((error: unknown) => {
     console.error("Archive verification failed; rebuild with current retained assets before uploading.");
+    console.error(error instanceof Error ? error.message : "Unknown archive verification error.");
     process.exitCode = 1;
   });
 }
diff --git a/tools/retain-site-assets.mts b/tools/retain-site-assets.mts
index 6ca115b..742ad07 100644
--- a/tools/retain-site-assets.mts
+++ b/tools/retain-site-assets.mts
@@ -8,9 +8,14 @@ export const ASSET_RETENTION_MS = 48 * 60 * 60 * 1000;
 export const PREVIOUS_SHELL_PATH = "/deployment-check/previous-shell.html";
 export const PREVIOUS_SHELL_META_PATH = "/deployment-check/previous-shell.json";
 export function normalizePublicShell(html: string): string {
-  // Compare only this known Cloudflare JSD request metadata; keep its code and the stored probe intact.
-  return html.replace(/(d\.innerHTML="window\.__CF\$cv\$params=\{r:')[a-f0-9]{16}(',t:')([A-Za-z0-9+/]+={0,2})('\};var a=document\.createElement\('script'\);a\.src='\/cdn-cgi\/challenge-platform\/scripts\/jsd\/main\.js';)/g,
-    (match, before: string, between: string, time: string, after: string) => /^\d{10}$/.test(Buffer.from(time, "base64").toString("utf8")) ? `${before}REQUEST_RAY${between}REQUEST_TIME${after}` : match);
+  // Cloudflare alternates these two exact loaders per request; any other HTML/code change must still fail comparison.
+  const prefix = "d.innerHTML=\"window.__CF$cv$params={r:'REQUEST_RAY',t:'REQUEST_TIME'};";
+  const legacy = "var a=document.createElement('script');a.src='/cdn-cgi/challenge-platform/scripts/jsd/main.js';document.getElementsByTagName('head')[0].appendChild(a);";
+  const parent = "var l=window.parent.location,o;try{o=new URL(l.origin).origin}catch(e){try{o=new URL(new URL(l.href).origin).origin}catch(e){o=''}}var u='/cdn-cgi/challenge-platform/scripts/jsd/main.js?ray=REQUEST_RAY',a=document.createElement('script');a.src=o?new URL(u,o).href:u;document.getElementsByTagName('head')[0].appendChild(a);";
+  return html.replace(/(d\.innerHTML="window\.__CF\$cv\$params=\{r:')[a-f0-9]{16}(',t:')([A-Za-z0-9+/]+={0,2})('\};(?:var a=document\.createElement\('script'\);a\.src='\/cdn-cgi\/challenge-platform\/scripts\/jsd\/main\.js';|var l=window\.parent\.location,o;))/g,
+    (match, before: string, between: string, time: string, after: string) => /^\d{10}$/.test(Buffer.from(time, "base64").toString("utf8")) ? `${before}REQUEST_RAY${between}REQUEST_TIME${after}` : match)
+    .replace(/(var u='\/cdn-cgi\/challenge-platform\/scripts\/jsd\/main\.js\?ray=)[a-f0-9]{16}(',a=document\.createElement\('script'\);)/g, "$1REQUEST_RAY$2")
+    .replaceAll(prefix + parent + '"', prefix + legacy + '"');
 }
 export function previousShellProbe(html: string, origin: URL): string {
   if (!/<head(?:\s[^>]*)?>/i.test(html) || /<base\b/i.test(html)) throw new Error("Previous shell needs a verifiable head without base overrides.");