W3C

The CSS Working Group has published a Proposed Recommendation of Selectors Level 3. Selectors are patterns that match against elements in a tree, and as such form one of several technologies that can be used to select nodes in an XML document. Selectors have been optimized for use with HTML and XML, and are designed to be usable in performance-critical code. This document describes the selectors that already exist in CSS1 [CSS1] and CSS2 [CSS21], and further introduces new selectors for CSS3 and other languages that may need them.

Comments are welcome through 12 October 2018.

The W3C JSON-LD Working Group has published three First Public Working Drafts today.

• The JSON-LD 1.1 Syntax document defines a JSON-based format to serialize Linked Data. The syntax is designed to easily integrate into deployed systems that already use JSON, and provides a smooth upgrade path from JSON to JSON-LD. It is primarily intended to be a way to use Linked Data in Web-based programming environments, to build interoperable Web services, and to store Linked Data in JSON-based storage engines. The 1.1 version of this specification will extend the existing JSON-LD 1.0 Recommendation, published in 2014.

• The JSON-LD 1.1 Processing Algorithms and API document defines a set of algorithms for programmatic transformations of JSON-LD documents. Restructuring data according to the defined transformations often dramatically simplifies its usage. Furthermore, this document proposes an Application Programming Interface (API) for developers implementing the specified algorithms. The 1.1 version of this specification will extend the existing JSON-LD Processing Algorithms and API Recommendation, published in 2014.

• The JSON-LD 1.1 Framing document defines an approach that allows developers to query by example and force a specific tree layout to a JSON-LD document.

All three documents are derived from Community Group Reports published by the JSON for Linking Data W3C Community Group.

The Working Group welcomes comments via the GitHub repository issues (see the respective documents’ headers for the reference of the repositories).

The CSS Working Group invites implementations of CSS Display Module Level 3 Candidate Recommendation. This module describes how the CSS formatting box tree is generated from the document element tree and defines the ‘display’ property that controls it.

CSS is a language for describing the rendering of structured documents (such as HTML and XML) on screen, on paper, in speech, etc.

The CSS Working Group invites implementations of two updated Candidate Recommendations of CSS Cascading and Inheritance Level 3 and CSS Cascading and Inheritance Level 4. The CSS module defined in these documents describes how to collate style rules and assign values to all properties on all elements. By way of cascading and inheritance, values are propagated for all properties on all elements. New in the Level 4 are the ‘revert’ keyword and <supports-condition> for the ‘@import’ rule.

CSS is a language for describing the rendering of structured documents (such as HTML and XML) on screen, on paper, in speech, etc.

The Devices and Sensors Working Group has published a First Public Working Draft of Geolocation Sensor. This specification defines the GeolocationSensor interface for obtaining geolocation of the hosting device.

The CSS Working Group has published a Proposed Recommendation of CSS Fonts Module Level 3. This CSS3 module describes how font properties are specified and how font resources are loaded dynamically. The contents of this specification are a consolidation of content previously divided into CSS3 Fonts and CSS3 Web Fonts modules. The description of font load events was moved into the CSS Font Loading module.

Comments are welcome through 11 September 2018.

W3C announced today a W3C Workshop on Permissions and User Consent, September 26-27, 2018, in San Diego, California, USA. The event is hosted by Qualcomm.

The primary goal of the workshop is to bring together security and privacy experts, UI/UX researchers, browser vendors, mobile OS developers, API authors, Web publishers and users to address the privacy, security and usability challenges presented by a complex and overlapping variety of permissions and consent systems available for hardware sensors, device capabilities and applications on the Web.

The scope includes:

• user consent;
• bundling of permissions;
• lifetime/duration of permissions;
• permission inheritance to iframes and other embedded elements;
• relation to same origin policy;
• UIs and controls;
• interaction with private browsing modes;
• implicit permission grants;
• progressive permission grants;
• cross-stack permissions: how OS, browser, and web app permissions interact;
• permission transparency;
• relation to regulatory requirements;
• special considerations for systems that use the browser as a pass-through
• permissions/transparency/UI as it relates to display-less devices that connect to the Internet.

For more information on the workshop, please see the workshop details and submission instructions. Expression of Interest and position statements are due by August 17, 2018.