If you reverted a Lovable or ZIP-uploaded landing page and the staging preview now shows a "Blocked request / host not allowed" error, a fix has been deployed. Re-run the revert, or make a small edit and republish to force a rebuild, then hard-refresh the preview.

## 🔍 What's Happening

After you use the **revert** feature to roll back a Lovable or ZIP-uploaded landing page (a `react_source` project) in the **Website Builder / Landing Page Studio**, the staging preview can fail to load.

The preview engine (Vite, the build tool that renders your staging preview) blocks the preview subdomain and shows a **"Blocked request / host not allowed"** style error. When this happens, the reverted page will not render in the preview tab.

### Who is affected

- Customers using the **Website Builder / Landing Page Studio**.
- Projects created from a **Lovable or ZIP upload** (a `react_source` project).
- Only after the **revert** action is used to roll back the project.

If you have not reverted a Lovable/ZIP project, this issue does not apply to you.

## 🛠️ Workaround Steps

A fix is now live. Follow these steps in order to restore your staging preview:

1. **Re-run the revert** on the affected Lovable/ZIP project. With the fix deployed, this re-applies the correct preview host configuration.
2. If the preview is still blocked, make a **small trivial edit** and **re-deploy/republish**. This forces the project to rebuild and re-apply the preview host settings.
3. **Hard-refresh the preview tab** to clear any cached error (`Ctrl + Shift + R` on Windows, `Cmd + Shift + R` on Mac).

Once the rebuild completes, your reverted landing page will load in the staging preview as expected.

## 📡 Engineering Status

Our team is aware of this issue and a fix has been **deployed**. New reverts and rebuilds will apply the corrected preview host configuration automatically. If you ran a revert before the fix went live, the workaround steps above will restore your preview.

## 📞 When to Contact Support

If the staging preview is still blocked after you re-run the revert, republish with a small edit, and hard-refresh, reach out to our support team. Please include:

- The **project name or URL** of the affected Lovable/ZIP landing page.
- A note that the page is a **reverted react\_source project**.
- A screenshot of the **"Blocked request / host not allowed"** error.

Our team will take a closer look and help you get the preview rendering again.

**🎯 You're in good hands** — the fix is live, and in most cases re-running the revert and republishing restores your preview right away. If anything still looks off, contact support and we'll take it from there.