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It says in red at the top to not turn on your microwave. This seems to be testing if WiFi waves can get through the microwave.

It’s interesting the browser can get access to this information with no prompts

All it does is measures ping. No direct WiFi measurements just the timing of regular network requests.

> It’s interesting the browser can get access to this information with no prompts

Exactly what information is it getting ? What Chrome API is this using ?