Web Platform Baseline Status Breakdown
Total Features: 1219
Categories:
All
CSS (6)
Text (4)
Units (4)
Workers (3)
Color types (2)
Container queries (2)
JavaScript (2)
JavaScript modules (2)
Reporting (2)
Selectors (2)
Streams (2)
WebAssembly (2)
Animation (1)
Clipping, shapes, and masking (1)
Explicit defaults (1)
HTML (1)
Image scaling (1)
Internationalization (1)
Iterators (1)
Maps (1)
MathML (1)
Scrolling (1)
Security (1)
View transitions (1)
2026
1 features
• May 2026
Newly Available
The source property of a ToggleEvent object is the element which triggered the toggle event to fire for a popover, <dialog>, or <details> element, if applicable.
Chrome
140
Firefox
145
Safari
26.5
Edge
140
Baseline Date: May 11, 2026