981: Browsers Are Finally Catching Up (Interop 2026)

Scott and Wes unpack Interop 2026 and the browser features finally aligning across engines, from container style queries and anchor positioning to scroll-driven animations and view transitions. They break down what it all means for day-to-day devs and how close we really are to a fully interoperable web.


Show Notes



00:00 Welcome to Syntax!


00:21 What is Interop?


Interop GitHub.





02:44 Container Style Queries.


09:32 Brought to you by Sentry.io.


09:57 Anchor Positioning.


12:01 CSS attr().


15:40 CSS Contrast-color.


19:10 CSS Zoom.


21:36 CSS Custom Highlight API.


24:02 Dialogs and Popovers.


25:44 Fetch Uploads and Ranges.


27:48 IndexedDB.


28:25 JSPI for Wasm.


29:05 Media Pseudo-Classes.


30:00 Navigation API.


31:53 Scoped Custom Element Registries.


32:40 Scroll-Driven Animations.


33:30 Scroll Snap.


36:50 CSS Shape().


38:25 View Transitions.


41:32 Web Compat.


42:29 WebRTC Improvements.


43:44 WebTransport.


45:44 Investigation Efforts.


46:25 JPEG XL


48:46 Mobile Testing.


49:20 WebVTT.






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