MRBD Capability Probe

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Present

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Absent

Feature-detection tells you what the runtime exposes. It does not prove a feature works — a WebView can expose an API that no-ops or throws. Open Live and run the functional probes for ground truth. Everything runs on-device; nothing is sent anywhere.

View detected APIs

Full present/absent inventory

Open ›

Run live probes

Audio, wake lock, storage, camera/mic, speech…

Open ›

Export results

Copy JSON to clipboard / localStorage

Open ›

Focus a probe and press Enter (index pinch / tap) to run it. Results update in place. “BLOCKED” = the API exists but the runtime denied it; that’s the answer you care about for camera/mic.

Copy JSON to clipboard

Falls back to selecting the text below

Run