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
2 features
• September 2026
Newly Available
Asynchronous iteration of a stream allows you to use for await … of loops to iterate through a stream's incoming data.
Chrome
124
Firefox
110
Safari
27
Edge
124
Baseline Date: Sep 14, 2026
• March 2026
Newly Available
A ReadableStream constructed with { type: "bytes" } reads bytes from a stream without making extra copies, improving efficiency for streams of large chunks. Also known as BYOB or bring your own buffer.
Chrome
89
Firefox
102
Safari
26.4
Edge
89
Baseline Date: Mar 24, 2026