Did you know your browser had super powers?
summary
Demo builds a small PWA that actually keeps a cooking screen awake using the Wake Lock API, switches themes from an Ambient Light Sensor, uses device orientation to reveal a mock credit card, and pauses/resumes video with Page Visibility. It also edits local files via the File System Access API, shares cocktail data through Web Share, and imports contacts via the Contact Picker. Most demos work live (installable PWA, save/open files, native share, Android contact picker) but several APIs remain experimental or limited to Chrome/Android.
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chapters (9)
- 0:00Introduction to web APIs
- 3:09Wake lock API
- 9:43Ambient light and sensors
- 13:21Device orientation API
- 16:14File system access API
- 21:51Web share API
- 25:45Contact picker API
- 31:17Page visibility API
- 37:12Q&A and closing remarks








