IntersectionObserver
- WDAPI that can be used to understand the visibility and position of DOM elements relative to a containing element or to the top-level viewport. The position is delivered asynchronously and is useful for understanding the visibility of elements and implementing pre-loading and deferred loading of DOM content.
Chrome
- 4 - 50: Not supported
- 51 - 57: Partial support
- 58 - 64: Supported
- 65 - 122: Supported
- 123: Supported
- 124 - 126: Supported
Edge
- 12 - 14: Not supported
- 15: Partial support
- 16 - 18: Supported
- 79 - 122: Supported
- 123: Supported
Safari
- 3.1 - 12: Not supported
- 12.1 - 17.3: Supported
- 17.4: Supported
- TP: Supported
Firefox
- 2 - 51: Not supported
- 52 - 54: Disabled by default
- 55 - 123: Supported
- 124: Supported
- 125 - 127: Supported
Opera
- 9 - 37: Not supported
- 38 - 44: Partial support
- 45 - 63: Supported
- 64 - 107: Supported
- 108: Supported
IE
- 5.5 - 10: Not supported
- 11: Not supported
Chrome for Android
- 122: Supported
Safari on iOS
- 3.2 - 12.1: Not supported
- 12.2 - 17.3: Supported
- 17.4: Supported
Samsung Internet
- 4: Not supported
- 5 - 6.4: Partial support
- 7.2 - 22: Supported
- 23: Supported
Opera Mini
- all: Not supported
Opera Mobile
- 10 - 12.1: Not supported
- 80: Supported
UC Browser for Android
- 15.5: Supported
Android Browser
- 2.1 - 4.4.4: Not supported
- 122: Supported
Firefox for Android
- 123: Supported
QQ Browser
- 14.9: Supported
Baidu Browser
- 13.52: Supported
KaiOS Browser
- 2.5: Not supported
- 3: Supported
- Sub-features:
- IntersectionObserver V2