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docs: update preview domain from .vercel.run to .preview.roocode.cloud #522

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mrubens merged 1 commit into from
Feb 4, 2026
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docs: update preview domain from .vercel.run to .preview.roocode.cloud #522

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10 changes: 5 additions & 5 deletions docs/roo-code-cloud/environments.mdx
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Expand Up @@ -86,9 +86,9 @@ For each named port, an environment variable is injected into your container:

| Port Config | Environment Variable | Example Value |
|-------------|---------------------|---------------|
| `name: WEB, port: 3000` | `ROO_WEB_HOST` | `https://abc123.vercel.run` |
| `name: API, port: 3001` | `ROO_API_HOST` | `https://def456.vercel.run` |
| `name: ADMIN, port: 3002` | `ROO_ADMIN_HOST` | `https://ghi789.vercel.run` |
| `name: WEB, port: 3000` | `ROO_WEB_HOST` | `https://abc123.preview.roocode.cloud` |
| `name: API, port: 3001` | `ROO_API_HOST` | `https://def456.preview.roocode.cloud` |
| `name: ADMIN, port: 3002` | `ROO_ADMIN_HOST` | `https://ghi789.preview.roocode.cloud` |

### Naming Rules

Expand Down Expand Up @@ -323,7 +323,7 @@ After the environment starts, you'll get unique URLs for each port. Visit the WE

### CORS Errors

In a preview environment, your frontend and backend run on different domains (e.g., `https://abc123.vercel.run` and `https://def456.vercel.run`). Browsers block cross-origin requests by default, so you need to configure both sides: the backend must allow the frontend's origin, and the frontend dev server must accept the preview domain.
In a preview environment, your frontend and backend run on different domains (e.g., `https://abc123.preview.roocode.cloud` and `https://def456.preview.roocode.cloud`). Browsers block cross-origin requests by default, so you need to configure both sides: the backend must allow the frontend's origin, and the frontend dev server must accept the preview domain.

Make sure both ports are defined so the `ROO_*_HOST` variables get injected:

Expand Down Expand Up @@ -356,7 +356,7 @@ app.register(import('@fastify/cors'), {

#### Frontend: Allow the preview domain

Dev servers like Vite and Next.js reject requests from unrecognized hosts by default. You need to allow the preview domain so the dev server responds to requests on `https://<id>.vercel.run`:
Dev servers like Vite and Next.js reject requests from unrecognized hosts by default. You need to allow the preview domain so the dev server responds to requests on `https://<id>.preview.roocode.cloud`:

```typescript
// Vite — vite.config.ts
Expand Down