---
title: Known issues
canonical: https://developer.unico.io/dual-api/developers/sdks-and-tools/web/web-sdk/resources/known-issues
locale: en
generated_by: markdown-export
---

- **CSP blocks SDK loading** — without the required CSP directives (`worker-src`, `script-src`, etc.), the Web SDK fails to load Web Workers and additional resources. [Review the CSP configuration](/dual-api/developers/sdks-and-tools/web/web-sdk/installation).

- **`prepareSelfieCameraForIFrame` outside an iFrame returns error `73724`** — the iFrame method only works inside an iFrame. Use `prepareSelfieCamera` for non-iFrame contexts. The reverse also applies — using `prepareSelfieCamera` inside an iFrame returns error `73406`.

- **Fullscreen on iPhone is restricted** — Apple restricts the use of full-screen APIs specifically on iPhones (iPads are acceptable). For captures on iPhones, manually configure the positioning of the iFrame.

- **Frame is distorted by parent CSS** — design systems with grid components (Bootstrap, Material-UI, etc.) can interfere with the capture frame. Position the frame (`id="box-camera"`) where it does not inherit unwanted CSS rules.

- **Smart camera fails on Web Mobile when frame is not 100vw/100vh** — for mobile, the capture frame must occupy 100% of the device screen to avoid issues with computer vision algorithms.

- **Liveness with interaction does not work in social media webviews** — Liveness without interaction is approved on Instagram and Facebook webviews; the interactive variant is not.