W3C

The Device and Sensors Working Group has published a W3C Edited Recommendation of Vibration API (Second Edition). This specification defines an API that provides access to the vibration mechanism of the hosting device. Vibration is a form of tactile feedback. The Edited Recommendation incorporates a few editorial changes brought to the 2015 Vibration Recommendation, including a new privacy and security section.

The Social Web Working Group has published an updated Candidate Recommendation of Micropub. Micropub is an open API standard used to create posts on one’s own domain using third-party clients. Web apps and native apps (e.g., iPhone, Android) can use Micropub to post short notes, photos, events or other posts to your own site.

In accordance with the W3C Patent Policy, W3C has launched a Web Authentication Working Group Patent Advisory Group (PAG) in response to disclosures related to the Web Authentication API; see the PAG charter. W3C launches a PAG to resolve issues in the event a patent has been disclosed that may be essential, but is not available under the W3C Royalty-Free licensing requirements. Public comments regarding these disclosures may be sent to public-webauthn-pag@w3.org (public archive). Learn more about Patent Advisory Groups.

The Web Payments Working Group has published Web Payments Overview 1.0, which provides an introduction to the Web Payments ecosystem in development at W3C. The document lists some goals for improving payments on the Web, and provides a high level view of how components in the ecosystem communicate. The Working Group welcomes feedback.

The HTML Media Extensions Working Group has published a Proposed Recommendation of Media Source Extensions™.

This specification allows JavaScript to dynamically construct media streams for <audio> and <video>. It defines a MediaSource object that can serve as a source of media data for an HTMLMediaElement. MediaSource objects have one or more SourceBuffer objects. Applications append data segments to the SourceBuffer objects, and can adapt the quality of appended data based on system performance and other factors. Data from the SourceBuffer objects is managed as track buffers for audio, video and text data that is decoded and played. Byte stream specifications used with these extensions are available in the byte stream format registry. Comments are welcome through 1 November 2016.

The group also published the following specifications as Working Group Notes:

• Media Source Extensions Byte Stream Format Registry
• MPEG-2 TS Byte Stream Format
• MPEG Audio Byte Stream Format
• ISO BMFF Byte Stream Format
• WebM Byte Stream Format

The CSS Working Group invites implementation of two Candidate Recommendations:

• CSS Grid Layout Module Level 1: This CSS module defines a two-dimensional grid-based layout system, optimized for user interface design. In the grid layout model, the children of a grid container can be positioned into arbitrary slots in a predefined flexible or fixed-size layout grid.
• CSS Values and Units Module Level 3: This CSS module describes the common values and units that CSS properties accept and the syntax used for describing them in CSS property definitions.