What to establish first
- 1
Review Settings → Privacy & Security for Camera or Microphone when the browser app has been denied.
- 2
Re-test in DeviceOK after changing the permission rather than assuming the app reloaded it.
- 3
Compare the same camera/microphone in another trusted app if the browser test fails.
Useful browser evidence on iPhone & iPad
Touchscreen TestDraw on the screen to verify touch/pointer coverage.
→Webcam TestOpen your webcam locally to verify that the browser can access and display a live camera stream.
→Microphone TestCheck whether your browser can detect your microphone and receive live audio.
→Left Right Speaker TestPlay left and right channel tones separately.
→Screen Color TestDisplay full-screen red, green, blue, white, and black reference screens.
→What not to infer
- Browsers cannot inspect battery hardware, Face ID/Touch ID, cellular hardware or many protected sensors.
- All iOS browsers operate under platform restrictions that differ from desktop Chromium.
- System/hardware repair diagnostics should use Apple support/service workflows.