From c5454347f904ab01d7a2eb50ba069b14b31ec516 Mon Sep 17 00:00:00 2001
From: mawkone <mark@getacquired.com>
Date: Fri, 12 Jun 2026 15:12:14 -0700
Subject: [PATCH] fix(preview): remove zombie killer ping to allow container
 auto-wake via Traefik

---
 .../api/projects/[projectId]/anatomy/route.ts | 76 +------------------
 1 file changed, 1 insertion(+), 75 deletions(-)

diff --git a/vibn-frontend/app/api/projects/[projectId]/anatomy/route.ts b/vibn-frontend/app/api/projects/[projectId]/anatomy/route.ts
index 917b867c..57e32c49 100644
--- a/vibn-frontend/app/api/projects/[projectId]/anatomy/route.ts
+++ b/vibn-frontend/app/api/projects/[projectId]/anatomy/route.ts
@@ -793,81 +793,7 @@ async function loadPreviews(projectId: string): Promise<Preview[]> {
       [projectId],
     );
 
-    // Filter out zombies: if a server is marked 'running' but the URL returns a 50x
-    // Gateway error or times out, the process died. We mark it stopped so the
-    // UI can trigger an auto-restart.
-    const activePreviews: typeof rows = [];
-
-    await Promise.all(
-      rows.map(async (r) => {
-        if (r.state !== "running") {
-          activePreviews.push(r);
-          return;
-        }
-
-        try {
-          const controller = new AbortController();
-          // We use a short timeout because we don't want to block the anatomy
-          // response. A slow response doesn't mean it's dead (Next.js might
-          // just be compiling) — we ONLY want to catch instant 502/503s from Traefik.
-          const timeout = setTimeout(() => controller.abort(), 2000);
-          const ping = await fetch(r.preview_url, {
-            method: "HEAD",
-            signal: controller.signal,
-          });
-          clearTimeout(timeout);
-
-          // 502/503/504 means Traefik is up but the container isn't answering.
-          // 404 means Traefik doesn't even know about the route.
-          if (
-            ping.status === 502 ||
-            ping.status === 503 ||
-            ping.status === 504 ||
-            ping.status === 404
-          ) {
-            // GRACE PERIOD: If the server was started less than 60 seconds ago,
-            // Traefik might return a 502/504 simply because the Node process hasn't
-            // finished booting and binding to the port yet. Do not kill it!
-            const ageMs = Date.now() - new Date(r.started_at).getTime();
-            if (ageMs < 60_000) {
-              activePreviews.push(r); // Give it the benefit of the doubt
-              return;
-            }
-
-            console.warn(
-              `[anatomy] Preview zombie detected for ${r.preview_url} (HTTP ${ping.status}, age ${Math.round(ageMs / 1000)}s). Marking stopped.`,
-            );
-            await query(
-              `UPDATE fs_dev_servers SET state = 'stopped' WHERE id = $1`,
-              [r.id],
-            ).catch(() => {});
-          } else {
-            activePreviews.push(r);
-          }
-        } catch (e: any) {
-          // If the fetch aborts due to our 2s timeout, the server is just slow
-          // (likely doing a cold Webpack compile). DO NOT mark it as a zombie!
-          // Only kill it if we get a hard DNS/network error that isn't a timeout.
-          if (
-            e.name === "AbortError" ||
-            e.type === "aborted" ||
-            e.message?.includes("timeout")
-          ) {
-            activePreviews.push(r); // Benefit of the doubt — it's thinking
-          } else {
-            console.warn(
-              `[anatomy] Preview zombie detected for ${r.preview_url} (${e.message}). Marking stopped.`,
-            );
-            await query(
-              `UPDATE fs_dev_servers SET state = 'stopped' WHERE id = $1`,
-              [r.id],
-            ).catch(() => {});
-          }
-        }
-      }),
-    );
-
-    return sortDevPreviewsFrontendFirst(activePreviews).map((r) => ({
+    return sortDevPreviewsFrontendFirst(rows).map((r) => ({
       id: r.id,
       name: r.name,
       command: r.command ?? undefined,