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
3 features
• July 2015
Widely Available
The X-Frame-Options HTTP header limits where a document may be embedded in an iframe. The X-Frame-Options: SAMEORIGIN header disallows embedding in another origin. The X-Frame-Options: DENY header disallows embedding in any context, regardless of origin.
Chrome
4
Firefox
4
Safari
4
Edge
12
Baseline Date: Jul 29, 2015
Cross-Origin Resource Sharing is an HTTP-header based mechanism that allows a server to indicate any origins (domain, scheme, or port) other than its own from which a browser should permit loading resources. Also known as CORS.
Chrome
4
Firefox
3.5
Safari
4
Edge
12
Baseline Date: Jul 29, 2015
Widely Available
The Strict-Transport-Security HTTP response header informs browsers that the site should only be accessed using HTTPS, and that any future attempts to access it using HTTP should automatically be converted to HTTPS. Also known as HSTS.
Chrome
4
Firefox
4
Safari
7
Edge
12
Baseline Date: Jul 29, 2015