30 marca Apple udostępniło Safari Technology Preview która skierowana jest w głównej mierze do programistów oraz osób które chcą pomóc w poprawie działania przeglądarki Safari.

Wczoraj w Mac App Store pojawiła się Safari Technology Preview 5, która naprawia błędy odnalezione i zgłoszone w poprzedniej wersji. Lista poprawek jest naprawdę długa, a to wszystko dzięki użytkownikom którzy zaangażowali się w rozwój kolejnej wersji Safari na OS X(lub macOS). Jeśli chcecie pomóc w dalszym rozwijaniu i usprawnianiu działania przeglądarki możecie więcej przeczytać na tej stronie.

JavaScript
  • Corrected the entropy of Math.random() for the first two invocations
  • Corrected sticky RegExp handling when backtracking alternatives with dissimilar match lengths
  • Fixed ES6 site compatibility when Function.name is inferred from property names
  • Sped up ES6 Array iterators between 4x to 6x
  • Made the Object constructor be aware of new.target by storing the target’s prototype to the newly created object’s prototype
  • Fixed calls to getters and setters on super being called with wrong this object
  • Improved error messages for accessing arguments.callee and similar getters in strict mode
  • Made TypedArray.prototype.slice use the byteLength of passed array for memmove
CSS
  • Fixed the cascading order for !important properties in ::slotted and ::host rules correctly
  • Added color-gamut media query support for wide gamut displays
  • Made Web Fonts only download when characters are used in its unicode-range
  • Restored legacy parsing of color attributes with 4 and 8 digits
  • Corrected how transitions behave when auto values are used
  • Unprefixed -webkit-cross-fade()
  • Corrected cross-fade() rendering to match expectations
  • Corrected how prefixed and unprefixed variants in CSSStyleDeclaration are handled
  • Stopped attempting to compute min/max width for replaced elements with no intrinsic size
  • Unprefixed CSS Grid Layout properties
  • Fixed static position for positioned CSS Grid items
  • Corrected parsing when just using span as a grid-line value
  • Implemented CSS Grid auto-repeat computation
Web APIs
  • Started blocking Geolocation API calls on pages served over insecure connections
  • Made NodeList iterable
  • Added support for title attribute tooltips inside Shadow DOM content
  • Stopped retargeting event.target when an event bubbles up from an assigned node to its assigned slot
  • Enabled IndexedDB in Web Worker scripts
  • Fixed IndexedDB transactions so they can’t be committed or aborted twice
  • Started propagating user gesture state across postMessage boundaries
  • Aligned window.scroll(), scrollTo(), and scrollBy() with the CSSOM spec with support for the options argument
  • Made all scrolling height and width values be integral rounded
  • Added support for ArrayBufferView in the CSS Font Loading API
Web Inspector
  • Hook up ShadowChicken in the Debugger tab to properly show tail call deleted frames
  • Made let and const work as expected in Console evaluations
  • Improved organization of the Debugger tab sidebar
  • Added Object Graph view to heap snapshots and removed the Summary view
  • Fixed sites that relied on putting custom properties on console.prototype
  • Improved performance of filtering large timeline recordings
  • Made Inspect Element and element selection work with Shadow DOM nodes
  • Fixed the start times in the Frames timeline data grid
  • Started persisting breakpoints in scripts named via //# sourceURL
  • Fixed the scrollbar covering the last column in data grids when always showing scrollbars
  • Fixed Computed Style so it no longer shows both prefixed and unprefixed variants of properties
  • Made the Call Trees view in the Timelines tab filterable and hide it from views that are not filterable
  • Started showing in-progress message in timeline views that do not show data until the recording finishes
  • Improved performance of the Console when it tries to render thousands of messages at once
  • Fixed filtering by duration in the Frames timeline view
  • Fixed loading of //# sourceMappingURL with a relative URL
  • Improved console.count() to better match other browsers
  • Improved performance of the Timelines tab by profiling Web Inspector with Web Inspector
Media
  • Made media elements not pause right away when removed from the document
  • Started returning a Promise from HTMLMediaElement.prototype.play()
  • Stopped updating media duration at playback end while seeking
Security
  • Fixed case matching against the path portion of CSP source expression URLs that ends in a forward-slash
  • Corrected a CORS check what was sometimes incorrectly failing for media loads
Networking
  • Stopped restarting a resource preload if there is already one pending for the same URL
Accessibility
  • Media controls are now keyboard accessible along with other Shadow DOM elements
Bug Fixes
  • Fixed large animated GIFs not animating until the last frame on slow networks
  • Fixed Zoom In and Zoom Out on PDF documents