New WebKit Features in Safari 13.1

This year’s spring releases of Safari 13.1 for macOS Catalina, iPadOS, iOS, and watchOS bring a tremendous number of WebKit improvements for the web across Apple’s platforms. All of this with many more updates for improved privacy, performance, and a host of new tools for web developers. These features stand out to me: Pointer and […]

How to enable HTTP3 in Chrome / Firefox / Safari

Mattias recently tweeted that his website can now be served over HTTP/3 “even though no browser supports it yet”. While it’s true that no browser supports it out of the box right now, there are options to enable HTTP/3. Here’s how. 🧪 As with all experimental technolgy/features: things might break! Be warned! ~ Google Chrome […]

Webcam Hacking – The story of how I gained unauthorized Camera access on iOS and macOS

Amazing rundown by Ryan Pickren on how he gained unauthorized Camera access on iOS and macOS. We started on a normal HTTP website and ended up on a bastardized blob URI in a Secure Context. Here is a quick summary of how we did it: Open evil HTTP website HTTP website becomes a data: URI […]

New WebKit Features in Safari 12.1

Jonathan Davis – Web Technologies Evangelist for Apple – has done a writeup on the new features that have landed in Safari 12.1, which is included with macOS Mojave 10.14.4 and iOS 12.2. This release delivers web platform features that improve website integration with the operating system, new real-time communication capabilities, more compatible encrypted media […]

Rendering Sites Fullscreen in Safari on iPhone X / Introducing “User Agent Variables”

What the …? By default, the new iPhone X in landscape mode will contain sites in the so called “safe area”, resulting in white bars being rendered on either side of the site (src). The color, white by default, can be tweaked by altering the background-color on the <body> element. Do note that it’s only […]

Safari Auto-Play Policy Changes for macOS

The Safari team: Safari in macOS High Sierra uses an automatic inference engine to block media elements with sound from auto-playing by default on most websites. Safari 11 also gives users control over which websites are allowed to auto-play video and audio by opening Safari’s new “Websites” preferences pane, or through the “Settings for This […]

Safari Technology Preview

Safari Technology Preview is a version of Safari for OS X, distributed by Apple, that includes a cutting-edge, in-development version of the WebKit browser engine. It’s a great way to test upcoming WebKit features and give feedback to the people building them when it’s most useful — early in development. Think Webkit Nightly, but then […]

iOS9 MobileSafari Viewport Problem

The viewport is set incorrectly when the viewport meta tag is specified with initial-scale=1 or width=device-width, and the page contains an element (e.g. div tag) that is wider than the desired viewport’s boundary. In the screenshot above (courtesy @RWD) you can see that the off-screen menu actually appears on-screen in iOS9. Apple changed how iOS9 […]

Debugging iOS Safari and UIWebViews using Chrome DevTools

The ios_webkit_debug_proxy allows developers to inspect MobileSafari and UIWebViews on real and simulated iOS devices via the DevTools UI and WebKit Remote Debugging Protocol. DevTools requests are translated into Apple’s Remote Web Inspector service calls. The proxy detects when iOS devices are attached/removed and provides the current device list on http://localhost:9221. A developer can click […]