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Software-update: Google Chrome 66.0.3359.117

Google Chromelogo (75 pix) Google heeft versie 66 van zijn webbrowser Chrome uitgebracht. Google Chrome is beschikbaar voor Windows, Linux en macOS. Er zijn ook versies voor Android en iOS, maar die volgen een iets ander releaseschema. Sinds versie 50 is de ondersteuning voor oudere versies van Windows en macOS vervallen. In deze uitgave wordt onder meer een beperkte test gedaan met Site Isololation om zo de gevolgen van Spectre tegen te gaan en de beveiliging in het algemeen aan te scherpen.

Site Isolation Trial
Chrome 66 will include a small percentage trial of Site Isolation, to prepare for a broader upcoming launch. Site Isolation improves Chrome's security and helps mitigate the risks posed by Spectre.
To diagnose whether an issue is caused by Site Isolation, use chrome://flags#site-isolation-trial-opt-out as described here. Please report any trial-specific issues to help us fix them before Site Isolation is launched more broadly.

The ImageBitmap Rendering Context for <canvas>
Historically, rendering an image to a canvas has involved first creating an <img> tag and then rendering its contents to a canvas. This causes multiple copies of the image to be stored in memory. A new rendering context streamlines the display of ImageBitmap objects by avoiding memory duplication and rendering them more efficiently. This example shows how to do this using an ImageBitmapRenderingContext. This essentially transfers ownership of an image's pixels. This example does so from a blob to a <canvas>, but pixels can be moved between <canvas> elements as well. Note that the blob is compressed so it is not a full copy in memory.
const image = await createImageBitmap(imageBlob);
const canvas = document.createElement('canvas');
const context = canvas.getContext('bitmaprenderer');

canvas.toBlob((outputJPEGBlob) => {
  // Do something with outputJPEGBlob.
}, 'image/jpeg');
If this were done without createImageBitmap(), the imageBlob would be lazily decoded, which would cause jank. On the other hand createImageBitmap() is asynchronous which allows you to decode it completely before using it and avoiding jank. For example, a WebGL game could use this to load new textures on the fly as gameplay progresses.

CSS Typed Object Model
Historically, developers wanting to manipulate CSS properties have had to manipulate strings only for the browser to then convert it back to a typed representation. What made things worse was when developers tried to read the value of a CSS property in Javascript, this typed value was converted back to a string. In version 66, Chrome implements the CSS Typed Object Model (OM) Level 1, a part of Houdini, for a subset of CSS properties. Typed OM reduces this burden on both the developer and browser by exposing CSS values as typed JavaScript objects rather than strings. Along with allowing the performant manipulation of values assigned to CSS properties, Typed OM allows developers to write more maintainable and easy to understand code. A brief example illustrates the point. Previously if I wanted to set the opacity of an element I could do this: = 0.3; === "0.3"
el.attributeStyleMap.set("opacity", CSS.number("0.3"));
el.attributeStyleMap.get("opacity").value === 0.3
The returned values above are of type CSSUnitValue, which are easier to manipulate than strings.

Asynchronous Clipboard API
The new asynchronous clipboard API provides a promise-based means of reading from and writing to the clipboard. It's simpler than the old execCommand('copy') API released in Chrome 43 and integrates with the Permissions API. Future Chrome releases will also support copy/paste of richer types of data, including images. To get a taste of this API, lets do simple write and read operations with text.
try {
  await navigator.clipboard.writeText("Hello, clipboard.");
} catch { 
  console.error("Unable to write to clipboard.");
Similarly, to read text back:
const data = await navigator.clipboard.readText();
console.log("From the clipboard:", data);
For more information, including how to use security and permissions with the API, read Unblocking Clipboard Access and check out our sample.

The legacy ScriptProcessorNode was asynchronous and required thread hops, which could produce an unstable audio output. The AudioWorklet object provides a new synchronous JavaScript execution context which allows developers to programmatically control audio without additional latency and higher stability in the output audio. You can see example code in action along with other examples at Google Chrome Labs. In addition to AudioWorklet, other worklet API are being built. PaintWorklet was released in Chrome 65/Opera 52. An AnimationWorklet is planned. ScriptProcessorNode will be deprecated some time after AudioWorklet ships.

Blink > Animation
The add and accumulate compositing operations are intended for building modularized animations. The add and accumulate keywords will be supported in Chrome soon. Until then, they will no longer throw errors. This is to maintain compatibility with Firefox and other implementations.

Blink > CSS
CSS has two new features.
  • The mathematical expressions calc(), min(), and max() are now supported in media queries, as required by the CSS Values and Units Module Level 4 specification. This change brings them in line with other types of rules where these functions are allowed anywhere a number is allowed.
  • Floating point values are now allowed in the rgb() and rgba() functions.
Blink > Feature Policy
By default, the deviceorientation, deviceorientationabsolute, and devicemotion events are now restricted to top-level document and same-origin subframes, the same as if the feature policy for those features were set to 'self'. To modify this behavior, explicitly enable or disable the specific feature.

Blink > File API
The File API now results in a network error instead of a 404 when attempting to read from an invalid or non-existing blob URL.

Blink > Forms
HTML forms have two new features.
  • The <textarea> element and the <select> element now support the autocomplete attribute as required by the specification.
  • A mutable checkbox now fires three events as required by the HTML specification: a click event, then an input event, then a change event. Formerly only the click and change events were fired.
Blink > Fullscreen
If a page in fullscreen mode opens a popup and calls window.focus(), that page exits full screen. This does not occur if the popup receives focus some other way.

Blink > GetUserMedia
A new method on the MediaStreamTrack interface called getCapabilities() returns a MediaTrackCapabilities object, which specifies the values or range of values which each constrianable property. Capabilities vary by device.

Blink > JavaScript
There are several JavaScript changes.
  • The Function.prototype.toString() function now returns exactly what is written in the source code. This includes whitespace and other text that may have been used. For example, if there is a comment between the function keyword and the function name, the comment is now returned in addition to the keyword and name.
  • JSON is now a syntactic subset of ECMAScript, which allows line separator (U+2028) and paragraph separator (U+2029) symbols in string literals.
  • The catch clause of a try statement can now be used without a parameter.
  • String.prototype.trimStart() and String.prototype.trimEnd() are now available as the standards-based way of trimming whitespace from strings, in addition to String.prototype.trim() which was already implemented. The non-standard trimLeft() and trimRight() remain as aliases of the new methods for backward compatibility.
  • The Array.prototype.values() method returns a new array iterator object that contains the values for each index in the array.
Blink > Layout
Layout has two new features.
  • The grid prefix has been removed from the CSS gutter properties:
    • grid-gap becomes gap
    • grid-row-gap becomes row-gap
    • grid-column-gap becomes column-gap
The default value for all three is normal and the prefixed properties are aliases of the new ones. Note that column-gap property already exists and is used by css-multicol.
  • Elements with the display properties table-row, table-row-group, table-header-group, table-footer-group, table-cell, and table-caption that have a transform property are now containing blocks for fixed position elements. Blink currently does not make <tr>, <tbody>, <tfoot>, and <thead> be containing blocks for fixed-position elements.
Blink > Media
Media has two new features.
  • As announced earlier, autoplay is now allowed only when either the media won't play sound, after the user clicks or taps on the site, or (on desktop) if the user has previously shown an interest in media on the site. This will reduce unexpected video playbacks with sound when first opening a web page.
  • The Media Capabilities, Decoding Info API allows websites to get more information about the decoding abilities of the client. This enables more informed selection of media streams for the user, avoiding scenarios such as where the client is unable to smoothly and power-efficiently decode a resolution that might have been picked based only on available bandwidth and screen size.
Blink > Network
The Fetch API has two new features.
  • The Request object now supports a keepalive property which allows a fetch to continue after a tab is closed. This feature is invoked by passing a boolean in the constructor's initialization object. Its value can be read back from the object itself. This property can be used with sendBeacon() as well.
  • New AbortSignal and AbortController interfaces allow a fetch to be canceled. To accomplish this create an AbortController object and pass its signal property as an option to fetch. Calling abortController.abort() cancels the fetch. There's more information in our abortable fetch article, but a small code example is shown below.
const controller = new AbortController(); const signal = controller.signal; const requestPromise = fetch(url, { signal }); // Abort the fetch: controller.abort();

Blink > ServiceWorker
Service workers have two changes.
  • A service worker can no longer respond to a request whose mode is same-origin with a response whose type is CORS. This is a security measure recently added to the Fetch specification.
  • FetchEvent.clientId now returns an empty string instead of null when it isn't set. For example, this can occur during a navigation request.
Blink > WebRTC
Chrome now supports the RTCRtpSender.dtmf attribute per the specification. This replaces the CreateDTMFSender() function which has not yet been deprecated.

Deprecations and Interoperability Improvements

Blink > CSS
The object-position and perspective-origin properties no longer accepts three-part values such as top right 20%. This change also applies to basic shapes and gradients. Valid position values must always have 1, 2, or 4 parts.

Blink > HTML
Following a specification change, ImageCapture.prototype.setOptions() has been removed.

Blink > Input
Following a specification change, document.createTouch() and document.createTouchList() have been removed.

Blink > Web Audio
Following a specification change, automatic dezippering of AudioParam.prototype.value changes was removed from Chrome. If you need to smooth the value of AudioParam changes, use AudioParam.prototype.setTargetAtTime().

Versienummer 66.0.3359.117
Releasestatus Final
Besturingssystemen Windows 7, Linux, macOS, Windows Vista, Windows Server 2008, Windows Server 2012, Windows 8, Windows 10
Website Google
Licentietype Freeware

Reacties (6)

Wijzig sortering
In deze release zijn 62 security issues gefixt. De gefixte security issues:
  • [$TBD][826626] Critical CVE-2018-6085: Use after free in Disk Cache. Reported by Ned Williamson on 2018-03-28
  • [$TBD][827492] Critical CVE-2018-6086: Use after free in Disk Cache. Reported by Ned Williamson on 2018-03-30
  • [$7500][813876] High CVE-2018-6087: Use after free in WebAssembly. Reported by Anonymous on 2018-02-20
  • [$5000][822091] High CVE-2018-6088: Use after free in PDFium. Reported by Anonymous on 2018-03-15
  • [$4500][808838] High CVE-2018-6089: Same origin policy bypass in Service Worker. Reported by Rob Wu on 2018-02-04
  • [$3000][820913] High CVE-2018-6090: Heap buffer overflow in Skia. Reported by ZhanJia Song on 2018-03-12
  • [$500][771933] High CVE-2018-6091: Incorrect handling of plug-ins by Service Worker. Reported by Jun Kokatsu (@shhnjk) on 2017-10-05
  • [$N/A][819869] High CVE-2018-6092: Integer overflow in WebAssembly. Reported by Natalie Silvanovich of Google Project Zero on 2018-03-08
  • [$4000][780435] Medium CVE-2018-6093: Same origin bypass in Service Worker. Reported by Jun Kokatsu (@shhnjk) on 2017-11-01
  • [$2000][633030] Medium CVE-2018-6094: Exploit hardening regression in Oilpan. Reported by Chris Rohlf on 2016-08-01
  • [$2000][637098] Medium CVE-2018-6095: Lack of meaningful user interaction requirement before file upload. Reported by Abdulrahman Alqabandi (@qab) on 2016-08-11
  • [$1000][776418] Medium CVE-2018-6096: Fullscreen UI spoof. Reported by WenXu Wu of Tencent's Xuanwu Lab on 2017-10-19
  • [$1000][806162] Medium CVE-2018-6097: Fullscreen UI spoof. Reported by xisigr of Tencent's Xuanwu Lab on 2018-01-26
  • [$500][798892] Medium CVE-2018-6098: URL spoof in Omnibox. Reported by Khalil Zhani on 2018-01-03
  • [$500][808825] Medium CVE-2018-6099: CORS bypass in ServiceWorker. Reported by Jun Kokatsu (@shhnjk) on 2018-02-03
  • [$500][811117] Medium CVE-2018-6100: URL spoof in Omnibox. Reported by Lnyas Zhang on 2018-02-11
  • [$500][813540] Medium CVE-2018-6101: Insufficient protection of remote debugging prototol in DevTools . Reported by Rob Wu on 2018-02-19
  • [$500][813814] Medium CVE-2018-6102: URL spoof in Omnibox. Reported by Khalil Zhani on 2018-02-20
  • [$500][816033] Medium CVE-2018-6103: UI spoof in Permissions. Reported by Khalil Zhani on 2018-02-24
  • [$500][820068] Medium CVE-2018-6104: URL spoof in Omnibox. Reported by Khalil Zhani on 2018-03-08
  • [$N/A][803571] Medium CVE-2018-6105: URL spoof in Omnibox. Reported by Khalil Zhani on 2018-01-18
  • [$N/A][805729] Medium CVE-2018-6106: Incorrect handling of promises in V8. Reported by lokihardt of Google Project Zero on 2018-01-25
  • [$N/A][808316] Medium CVE-2018-6107: URL spoof in Omnibox. Reported by Khalil Zhani on 2018-02-02
  • [$N/A][816769] Medium CVE-2018-6108: URL spoof in Omnibox. Reported by Khalil Zhani on 2018-02-27
  • [$N/A][710190] Low CVE-2018-6109: Incorrect handling of files by FileAPI. Reported by Dominik Weber (@DoWeb_) on 2017-04-10
  • [$N/A][777737] Low CVE-2018-6110: Incorrect handling of plaintext files via file:// . Reported by Wenxiang Qian (aka blastxiang) on 2017-10-24
  • [$N/A][780694] Low CVE-2018-6111: Heap-use-after-free in DevTools. Reported by Khalil Zhani on 2017-11-02
  • [$N/A][798096] Low CVE-2018-6112: Incorrect URL handling in DevTools. Reported by Rob Wu on 2017-12-29
  • [$N/A][805900] Low CVE-2018-6113: URL spoof in Navigation. Reported by Khalil Zhani on 2018-01-25
  • [$N/A][811691] Low CVE-2018-6114: CSP bypass. Reported by Lnyas Zhang on 2018-02-13
  • [$TBD][819809] Low CVE-2018-6115: SmartScreen bypass in downloads. Reported by James Feher on 2018-03-07
  • [$N/A][822266] Low CVE-2018-6116: Incorrect low memory handling in WebAssembly. Reported by Jin from Chengdu Security Response Center of Qihoo 360 Technology Co. Ltd. on 2018-03-15
  • [$N/A][822465] Low CVE-2018-6117: Confusing autofill settings. Reported by Spencer Dailey on 2018-03-15
  • [$N/A][822424] Low CVE-2018-6084: Incorrect use of Distributed Objects in Google Software Updater on MacOS. Reported by Ian Beer of Google Project Zero on 2018-03-15
Chrome 66 is nu ook beschikbaar voor Android:

[Reactie gewijzigd door AnonymousWP op 18 april 2018 14:39]

Ook niet onbelangrijk, vanaf deze versie worden certificaten van Symantec die uitgegeven zijn voor 1 juni 2016 niet meer vertrouwd. Sites die zo'n certificaat gebruiken worden dus niet meer vertrouwd, en zullen standaard daarom niet openen.
Wordt eens tijd dat ze die software reporter tool eruit gaan knikkeren. Zorgt ervoor dat mijn PC soms voor langere tijd met 30 tot 50% belast wordt!
Site Isololation? lol.
Heeft iemand anders last van het feit dat sites ondragelijk langzaam laden of helemaal niet?

Heb de "site-isolation-trial-opt-out" al aan gezet en het is iets sneller maar nog niet zoals voor de update. Ook chrome al opnieuw geïnstalleerd maar dat mocht niet baten.

Op dit item kan niet meer gereageerd worden.

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