Assumptions & Known Limitations

Transparent engineering documentation of platform boundaries and technical limitations on Android/Meta Quest.

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Technical Limitations

1. Hardware DRM Video (Widevine L1)

• Status: Restricted by Android OS Security Architecture.
• Explanation: Premium streaming services (Netflix, Disney+, Hulu) enforce Widevine L1 hardware encryption. Android OS actively prevents VirtualDisplay and screen capture APIs from reading protected DRM hardware buffers to prevent piracy.
• Workaround: Standard unencrypted HTML5 video, YouTube, Vimeo, Twitch, and direct video streaming formats (.mp4, .webm, .hls) function perfectly.

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2. Camera & Microphone Input via WebRTC

• Status: Requires additional manifest permissions.
• Explanation: To keep the plugin 100% free of dangerous Android permissions for instant Meta Horizon Store compliance, camera/microphone capture within the WebView is disabled by default.

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3. Native File Upload Dialogs

• Status: Standard Android file chooser dialogs are 2D OS windows.
• Explanation: Clicking <input type="file"> attempts to summon Android's 2D file picker, which may not render natively inside an immersive VR space.
• Workaround: Transfer file data or base64 blobs from Unreal Engine using the ExecuteJavaScript() bridge.

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4. Shared Cookie Jar

• Status: By Android OS Design.
• Explanation: Calling ClearCookies() affects all active WebView instances because Android maintains a single shared CookieManager instance per application process.