Weekly Platform News: WebAPK Limited to Chrome, Discernible Focus Rectangles, Modal Window API

This week's web development news highlights key updates from Chrome and Edge: Android's "Add to Home Screen" functionality, improved focus rectangle accessibility, and a proposed Modal Window API. Let's dive in.

WebAPKs Exclusive to Chrome on Android

Android's "Add to Home Screen" behaves differently across browsers. Firefox creates a simple shortcut, while Chrome installs Progressive Web Apps (PWAs) as WebAPKs (provided PWA criteria are met). This installs the PWA in the app drawer, opening URLs within its scope directly in the PWA rather than the default browser. Mozilla's Tiger Oakes explains Firefox's inability to use WebAPKs stems from lacking an app store like Google Play or Galaxy Apps.

(via Tiger Oakes)

Enhanced Accessibility: Chrome and Edge Focus Rectangles

Microsoft and Google have boosted accessibility in form controls. Key improvements include larger touch targets for date/time inputs and redesigned, highly visible focus rectangles regardless of background color. These updates are available in Edge's preview version; Mac users might need to enable the "Web Platform Fluent Controls" flag in about:flags.

(via Microsoft Edge Dev)

New Modal Window API for Third-Party Integrations

A proposed Modal Window API offers a refined approach to loading third-party sites within modal windows (top-level browsing contexts) for tasks like authentication, payments, or service access. Only one modal window is permitted at a time; communication between the main site and the modal uses postMessage. This aims to replace less user-friendly methods like pop-ups (often blocked) and redirects (which can disrupt the user experience).

(via Adrian Hope-Bailie)

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