Web Platform Baseline Status Breakdown
Total Features: 1219
Categories:
All
HTML elements (75)
CSS (22)
Forms (22)
Selectors (13)
Background (8)
Text (7)
Landmark elements (6)
Fonts (5)
Positioning (5)
Strings (5)
WebGL extensions (5)
Arrays (4)
HTTP (4)
JavaScript (4)
Layout (4)
Media elements (4)
Primitive types (4)
Units (4)
Color types (3)
HTML (3)
Lists (3)
Security (3)
Animation (2)
Borders and outlines (2)
CSS object models (2)
Canvas (2)
Collections (2)
DOM (2)
Explicit defaults (2)
Messaging (2)
Transitions (CSS) (2)
XML (2)
Cookies (1)
Counters (1)
File system access (1)
Flexbox (1)
Geolocation (1)
Gradients (1)
Iterators (1)
JSON (1)
Maps (1)
Media queries (1)
Parsing and serialization (1)
Performance (1)
Promises (1)
Regular expressions (1)
Ruby (1)
SVG (1)
Sets (1)
Storage (1)
Text wrap (1)
Transforms (1)
Typed arrays (1)
Typographic font features (1)
Web components (1)
WebGL (1)
White space (1)
Workers (1)
2015
2 features
• September 2015
Widely Available
Channel messaging communicates one-to-one between browsing contexts on the same origin, such as between <iframe> elements or two documents using a shared worker.
Chrome
4
Firefox
41
Safari
5
Edge
12
Baseline Date: Sep 22, 2015
• July 2015
Widely Available
The postMessage() global method sends cross-origin messages to windows and workers, including popups and iframes. Also known as cross-document messaging.
Chrome
2
Firefox
3
Safari
4
Edge
12
Baseline Date: Jul 29, 2015