Web Platform Baseline Status Breakdown
Total Features: 1219
Categories:
All
HTML elements (88)
CSS (52)
Selectors (33)
Forms (30)
JavaScript (27)
WebGL extensions (24)
Arrays (17)
Media queries (14)
Text (14)
Fonts (13)
Strings (12)
Typed arrays (12)
WebAssembly (12)
Units (10)
Background (9)
Color types (9)
Security (9)
Clipping, shapes, and masking (8)
Layout (8)
Canvas (7)
Containment (7)
HTML (7)
Internationalization (7)
Typographic font features (7)
Web components (7)
Animation (6)
Landmark elements (6)
Performance (6)
Positioning (6)
Explicit defaults (5)
Media elements (5)
Messaging (5)
Promises (5)
DOM (4)
Font synthesis (4)
HTTP (4)
Image formats (4)
Iterators (4)
Primitive types (4)
SVG (4)
Scrolling (4)
Text wrap (4)
Workers (4)
Blend mode (3)
Borders and outlines (3)
CSS object models (3)
Counters (3)
Grid (3)
Lists (3)
Multi-column (3)
Storage (3)
Transforms (3)
Transitions (CSS) (3)
Web audio (3)
WebRTC (3)
White space (3)
Collections (2)
Custom elements (2)
Fetch (2)
File system access (2)
Flexbox (2)
Gradients (2)
JavaScript modules (2)
Maps (2)
Parsing and serialization (2)
Print media (2)
Resource hints (2)
WebAuthn (2)
XML (2)
CSS environment variables (1)
Clipboard (1)
Container queries (1)
Cookies (1)
Credential management (1)
Gamepad (1)
Geolocation (1)
Image scaling (1)
Images (1)
IndexedDB (1)
JSON (1)
MathML (1)
Reading order (1)
Regular expressions (1)
Resource integrity (1)
Ruby (1)
Selection (1)
Sensors (1)
Sets (1)
Speech (1)
Streams (1)
WebGL (1)
Worklets (1)
2023
2 features
• December 2023
Widely Available
The document.requestStorageAccess() method allows content in iframes to request storing and reading cookies and other site data, while the document.hasStorageAccess() method checks if such access is granted.
Chrome
119
Firefox
65
Safari
11.1
Edge
85
Baseline Date: Dec 5, 2023
• September 2023
Widely Available
The navigator.storage API provides information about the availability and persistence of the data that a site stores on the device, by using APIs such as the Cache API or the IndexedDB API.
Chrome
61
Firefox
57
Safari
17
Edge
79
Baseline Date: Sep 18, 2023
2015
1 features
• July 2015
Widely Available
The localStorage and sessionStorage APIs store data as key-value pairs. While localStorage persists across sessions, sessionStorage data is discarded when the page is closed.
Chrome
4
Firefox
3.5
Safari
4
Edge
12
Baseline Date: Jul 29, 2015