Opera 12.00 snapshot 1301：Do Not Track 支持、邮件及主题相关修复

如你从更新日志所见，这个 build 引入了相当多的修复、改变和提升。有几点尤其值得关注。

隐私

该 build 开始支持 Do Not Track ，它允许浏览器使用者选择在网上不被追踪。目前该设置默认是关闭的，可以在首选项对话框中设置：首选项 > 高级 > 安全性 > Ask websites not to track me”（这个 build 的中文语言包还没有对应翻译过来）。

注意，这玩意仅当网站确实尊重此要求的时候才有用。目前没几个网站这样做，后续要评价 DNT(Do Not Track)的效果，才能判断长远来说它是不是可靠的解决方案（译者注：这也是 Opera 比其他浏览器晚了不少才开始支持 DNT 的原因，只有网站本身严格自律，DNT 才能帮助保护用户隐私，所以 Opera 对 DNT 的实际意义持保留态度）。

SSL 性能

该 build 开始了加速 SSL 处理的第一轮优化 (CORE-41667)：

• 优化 TCP 以消除 TCP roundtrip
• 改进会话协商以节省等待的时间
• 改进连接处理，HTTP 和 HTTPS 连接都会因此改善
• 更快地关闭连接使新连接得以更早开始
• 用同等的时间并行处理 OCSP/CRL 以检查证书是否吊销
• 使用 (HTTP) 严格传输安全性 (HSTS) 提升安全性，如果网站服务器启用了该特征，访问速度也会提高。

例如，第一次载入 skandiabanken.no 可以加快 1 秒甚至更多。加上后续 10 次页面载入，相比于优化之前，总的加载时间几乎减少了一半。

XHR

CORE-41784 (XMLHttpRequest Level 2 上传和 progress 事件)此内核更新使 Opera 得以完整支持 XMLHttpRequest 的 progress 事件，可用于上传、下载和 timeout update。这可以改善在使用 Google 的服务时上传文件的体验（ 在 YouTube 和 Gmail 中上传文件将不再依赖 Flash ），将来会有更多网站跟进。

更多

改善相当多，包括内核、M2 （邮件客户端）和主题（旧称“皮肤”）的修复。详情见更新日志。

下载链接

• Windows
• Mac
• Linux/FreeBSD

更新日志

桌面版

• DSK-351582 Crash when writing in address field after bookmark has been deleted
• DSK-337608 Crash on exit after installing Speed Dial extensions
• DSK-355413 Single tab appears as stack
• DSK-340411 Freeze when pasting long string into address bar
• DSK-349889 Submit data security warning locks page with two warning dialogs where only one can be closed
• DSK-298032 Find in page (Ctrl+F) uses last used Find inline type

M2（邮件客户端）

• DSK-267965 支持 Yahoo IMAP
• DSK-320233 Responding to HTML mail should respond as HTML mail even when default is plain-text
• DSK-350402 Crashes if you unpin the last message in the “Pinned” view
• DSK-355394 Crash when closing mail window
• DSK-355494 Mail header aligned to the right instead of left
• DSK-353909 Crash when selecting mail
• DSK-350332 Mail unread count is wrong
• DSK-352390 Unable to customize feed headers display
• DSK-350584 Quick Reply text field content lost after switching messages
• DSK-353193 Scrollwheel/arrow keys don’t scroll the message area when focus is on message padding
• DSK-353996 ‘No images’ setting lost after selecting another message
• DSK-354567 Reset Mail view setting ‘time period’ on upgrading from pre-12 versions.
• DSK-355473 Doesn’t remember the last selected message in the list after a restart
• DSK-356611 Can’t scroll textarea all the way to the bottom
• DSK-348448 Mail print preview should use the full mail window height
• DSK-347227 Pinning/unpinning in list not redrawn in message view right away
• DSK-350960 Account update spinner on mail panel sections doesn’t always disappear
• DSK-356032 Don’t show the mail maintanance dialog on exit

皮肤/主题

• DSK-340152 The selected thumbnail in the add dialog on SD lacks a selected state
• DSK-340136 Tabs are changing their width on hover
• DSK-352081 Unreadable color combination in selected opera:config items
• DSK-347908 Double progress spinners in visual tab mode
• DSK-340936 Page load spinner animation restarts on mouse hover
• DSK-346438 Opera Turbo Tooltip repeated multiple times
• DSK-260734 Download of unknown size shows wrong tab title
• DSK-349657 Unintended background color behind message counts
• DSK-351800 Page loading spinner in visual tabs doesn’t animate
• DSK-355062 Wrong button on fraud warning page
• DSK-355042 Background gradient not wide enough when tabs are on the side
• DSK-351508 Clean up Address Field and Search Field paddings
• DSK-353058 Remove the wrapping toolbar around the Back/Forward buttons in the Addressbar
• DSK-351152 Blue bar at the top of the integrated tab/title bar
• DSK-350701 Ampersands on main menu in WinXP with Zune Theme
• DSK-352610 Panel toggle strip broken
• DSK-349069 Taskbar context menu does not work on XP with theme isntalled
• DSK-353449 Menu bar font is controlled by “browser toolbars” rather than “browser menus”
• DSK-347984 Installing old-style skin after theme makes both apply
• DSK-350481 Aero menu bar skin stripe broken with hardware acceleration
• DSK-351752 Theme background images do not line up between screen elements
• DSK-354933 Wrong highlight color in address field dropdown
• DSK-356643 [*nix] Theme not resized when going to maximixed state
• DSK-353770 The skin debug tooltip should only be shown when holding down Ctrl

内核

• 大量针对崩溃的修复
• 和 Dragonfly 有关的多方面修补
• CORE-41308 Don’t allow iframes to embed parent document in iframe with src=”#” (caused freezing/memory usage)
• CORE-41844 Crash on huge input field
• CORE-41835 if(top.document) should not work crossdomain
• CORE-41809 Small rich text edit leak
• CORE-41647 ‘list-style-type: none’ affects CSS Gradients but not other images (spec is ambiguous)
• CORE-41669 xx-small font size is not the same as other browsers
• CORE-31179 Dynamically applied text-shadow is clipped
• CORE-41708 支持 HTMLInputElement.width 和 HTMLInputElement.height
• CORE-41793 Internal ES class name for key event object needs to be KeyboardEvent (breaks dartlang.org input)
• CORE-34674 about:blank not blank enough
• CORE-42174 Crash on codeflow.org webgl demo
• CORE-36742 Cookies added via AddCookie don’t show up in JS (document.cookie)
• CORE-41643 Cut and Paste text does not paste cut text (FramesDocument::CutTextToClipboard missing code to store in clipboard)
• CORE-42357 External scripts not saved in MHTML
• CORE-42361 XML parsing failed when saving XHTML document with images
• CORE-42359 Elements in OBJECT tags not saved when saving with images
• CORE-42263 EventSource and CORS (non-)credentialled requests
• CORE-42296 add color:black to UA styling for <mark> to make it readable when default text colour is yellowish
• CORE-42450 Broken .oex file causes Opera freeze
• CORE-42489 Cached text-info not recomputed in indirect traversals on font invalidation
• CORE-42570 Can’t log in to Opera Link using non-ASCII password
• CORE-42214 Opera hangs on submitting forms which was changed by JS
• CORE-28773 non-BMP character in URL is not correctly displayed in status bar
• CORE-42281 :not(.a).b and :not(#a)#b don’t match when they should
• CORE-20881 Text selection in document edit handles a surrogate pair as two characters
• CORE-42217 Wrong box-shadow calculations
• CORE-25919 Convert hex to unicode fails to work in mail compose/designmode
• CORE-12300 Opera crashes if the english.lng file is missing
• CORE-5664 line-height: 0 prevents text selection
• CORE-40886 minhaseconomias.com.br doesn’t load after login (Unicode issue)
• CORE-40524 Shink to fit float next to another float gets pushed down by unnecessary scrollbar in overflow:auto ancestor
• CORE-13929 if !important is not followed by a semi-colon, not only the next declaration is dropped, but the following rule as well
• CORE-40509 Percentage-height image not propagating width to percentage-height shrink-to-fit ancestor
• CORE-39361 text-indent causes wrapping in a nested float and left padding env (brita.com)
• CORE-38020 STF float containing inline with left padding and float gets too narrow in almost-standards mode
• CORE-42663 css white-space property values other than ‘nowrap’ not handled in MultilineEdit
• CORE-42614 Linear gradient leak
• CORE-42396 Reduce Bidi calculation memory usage
• CORE-42537 Unicode space like characters should not be converted to SPACE (U+0020) in document title
• CORE-39103 Slight JS performance increase
• CORE-42736 ‘transform’ attribute on element is ignored after animateTransform is removed
• CORE-42671 Element remains in active state after doubleclick
• CORE-42776 animateTransform + svg filter not placed correctly
• CORE-40065 Event.prototype should have constants AT_TARGET, BUBBLING_PHASE, CAPTURING_PHASE, …
• CORE-42038 postMessage gives scheme://host instead of null for file scheme, which does not have scheme/host/port tuple
• CORE-42784 EventSource fails in widgets due to CORS check
• CORE-41319 Clicking on certain parts of a column does not hit
• CORE-42822 Running while statement with exec on regexp which has been created with compile fails to step through matches
• CORE-42909 Style tags in SVG embedded in HTML5 are ignored
• CORE-42848 Sub-tree with character data (text or comments) in it is inserted into an element twice, causing performance problems
• CORE-42866 Fix for Unicode attachment filenames in mail causes corrupted filenames in some clients
• CORE-8987 Preference changes are not saved immediately
• CORE-42910 document.lastModified should return current time if not known
• CORE-42574 Traversing DOM, running cloneNode and setting innerHTML en masse spikes CPU
• CORE-37862 FileReader API – The last “progress” event sometimes fires after “load” and “loadend” events
• CORE-43012 Turn off default preference for SSL false start
• CORE-42812 Border-radius shorthand can’t be removed with removeProperty()
• CORE-33296 Opera cannot read zip files created with bsdtar or zip64 files
• CORE-43050 When a numeric or date input is hidden, then later has its value cleared and is displayed again, the old value is restored
• CORE-43010 currentColor gets handled as invert on outline-color property

[ Via Opera Desktop Team – Opera.IM 编译]