HTML Imports
- WDDeprecated method of including and reusing HTML documents in other HTML documents. Superseded by ES modules.
Chrome
- ❌ 4 - 29: Not supported
- ❌ 30 - 34: Disabled by default
- ❌ 35: Disabled by default
- ✅ 36 - 79: Supported
- ❌ 80 - 130: Not supported
- ❌ 131: Not supported
- ❌ 132 - 134: Not supported
Edge
- ❌ 12 - 18: Not supported (but has polyfill available)
- ✅ 79: Supported
- ❌ 80 - 130: Not supported
- ❌ 131: Not supported
Safari
- ❌ 3.1 - 5.1: Not supported
- ❌ 6 - 18.0: Not supported (but has polyfill available)
- ❌ 18.1: Not supported (but has polyfill available)
- ❌ 18.2 - TP: Not supported (but has polyfill available)
Firefox
- ❌ 2 - 29: Not supported
- ❌ 30 - 31: Not supported (but has polyfill available)
- ❌ 32 - 55: Disabled by default
- ❌ 56 - 131: Not supported (but has polyfill available)
- ❌ 132: Not supported (but has polyfill available)
- ❌ 133 - 135: Not supported (but has polyfill available)
Opera
- ❌ 9 - 16: Not supported
- ❌ 17 - 21: Disabled by default
- ❌ 22: Disabled by default
- ✅ 23 - 66: Supported
- ❌ 67 - 113: Not supported
- ❌ 114: Not supported
IE
- ❌ 5.5 - 9: Not supported
- ❌ 10: Not supported (but has polyfill available)
- ❌ 11: Not supported (but has polyfill available)
Chrome for Android
- ❌ 131: Not supported
Safari on iOS
- ❌ 3.2 - 6.1: Not supported
- ❌ 7 - 18.0: Not supported (but has polyfill available)
- ❌ 18.1: Not supported (but has polyfill available)
- ❌ 18.2: Not supported (but has polyfill available)
Samsung Internet
- ✅ 4 - 12.0: Supported
- ❌ 13.0 - 25: Not supported
- ❌ 26: Not supported
Opera Mini
- ❌ all: Not supported
Opera Mobile
- ❌ 10 - 12.1: Not supported
- ❌ 80: Not supported
UC Browser for Android
- ✅ 15.5: Supported
Android Browser
- ❌ 2.1 - 4.4.4: Not supported
- ❌ 131: Not supported
Firefox for Android
- ❌ 132: Not supported (but has polyfill available)
QQ Browser
- ✅ 14.9: Supported
Baidu Browser
- ❌ 13.52: Not supported
KaiOS Browser
- ✅ 2.5: Supported
- ❌ 3: Not supported (but has polyfill available)