[Opera 釋出] Next 12.00Alpha #1301 不要追蹤與 XHR

As you can see from the changelog, this build introduces quite a few fixes, changes and improvements. Since there's a lot of it, I'll highlight a few important things below.

你可以從更新記錄中看出來，這是一個包含很多修復、變更、改進的更新。為了不讓大家沉沒在這些更新記錄中，我為大家整理了這次更新的精華。

Privacy（隱私）

This Wahoo builds adds support for Do Not Track, which allows browser users to opt out of being tracked on the web. It is currently disabled by default, but can be enabled by enabling the following option in Opera's Preferences dialog: "Preferences > Advanced > Security > Ask websites not to track me"

這個 Wahoo 更新新增了 Do Not Track（不要追蹤）的支援，這使得瀏覽器使用者可以選擇迴避網路中的追蹤行為。目前這個選項預設是停用的，但你可以透過 Opera 功能設定視窗中的選項來啟用：「功能設定 > 進階 > 安全性 > Ask websites not to track me」

t7yang 註：點這個連結也可以快速切換 DNT 開關。

Note that this will only work if the site actually honors the request. Few sites currently do, and the effect of DNT will have to be evaluated to see if it is a viable solution in the long run.

請記得，不追蹤的要求必須仰賴網站主忠實回應這個要求。目前有一些網站已經有在遵照使用者的要求了，而評估 DNT 所帶來的效果，必須得從長期來看它是否是一個可行的方案。

SSL performance（SSL 效能）

This build also introduces a first round of optimizations for faster SSL handling (CORE-41667):（這次的更新也推出了第一階段對加速 SSL 處理（CORE-41667）的最佳化：）

TCP optimization to eliminate roundtrips
Improved session negotiation to save on waiting times
Improved connection handling which improves both HTTP and HTTPS connections
Quicker closing of connections allows for new connections at an earlier stage
Parallelizing OCSP/CRL uses half as much time to do revocation checking
Strict transport security improves security and will also improve speed when servers start using this feature

As an example, the first load at skandiabanken.no was reduced by one second or more. With 10 subsequent page loads, the time to open the page was almost cut in half in total.

舉個例子，第一次載入 skandiabanken.no 可以減少一秒甚至更多的耗時。對連續 10 個網頁載入，總體所需的時間甚至可以減少一半。

XHR

With CORE-41784 (XMLHttpRequest Level 2 upload and progress events), we completed our support for progress events in XMLHttpRequest, for upload, download, and timeout update. This will improve the upload experience on Google services (no more Flash uploaders on YouTube and Gmail), and more sites are to follow.

藉助 CORE-41784（XMLHttpRequest Level 2 上傳與進度事件），我們完成了在 XMLHttpRequest 對進度事件的支援，包含了上傳、下載、超時更新。這對（尤其是）Google 和其他網站（未來會支援）的上傳體驗有很大改善。

t7yang 註：讀者可以試試用這版去開 GMail，就可以感覺到有別於以往的飛快反應速度，真的很過癮。

More（更多）

There are numerous other improvements, including Core, mail and theme fixes. Take a look at the changelog for more information.

除此之外還有很多改進的部分，抱括針對核心、郵件和主題的修復。逛逛我們的更新記錄，你可以取得更多的資訊。

WARNING: This is a development snapshot: It contains the latest changes, but may also have severe known issues, including crashes, and data loss situations. In fact, it may not work at all.

翻譯聲明：
本翻譯為個人業餘即興之翻譯，非屬官方正式中文翻譯。目的為協助不詣英文的讀者也能夠或多或少的瞭解 Opera 的消息。基於專業程度和時間的關係，省略、錯誤和翻譯品質不佳等問題在所難免。有發現翻譯上的錯誤，歡迎通知，省略與翻譯品質不佳則請見諒。如果發現譯文與原文產生衝突時，一切以原文為準。最後提醒，若你英文造詣高超，請直接閱讀原文。

下載

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最後要提的是，面板的切換條已經修好，還有比這個更開心的事嗎？哈哈哈…不過話說回來這版開 GMail 真的是爽度十足。另外有網友爆料說接下來 DT 會開始開發對 HTML5 拖曳上傳的支援，希望進度可以快一點 XD

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