Adobe 的 Typekit 推廣 HTTPS only

AdobeTypekit 宣佈之後的 embed code 預設就會是 HTTPS only:「Font loading update: All HTTPS, all the time」。

主要的原因是出自於最近發現的安全問題,攻擊者可以藉由字型處理的 security issue 攻擊,而導入 HTTPS 後可以降低這部分的風險:

We’ve made this change as a response to the recent vulnerabilities and exploits in the OpenType and TrueType font formats. A malicious attacker could use these vulnerabilities to modify a Typekit font while it is being transmitted from our servers to your browser. Serving fonts (and other resources) over HTTPS ensures that the communication channel between your browser and our servers is not compromised and fonts are delivered in a secure way.

就目前看起來,use.typekit.net 還是使用 EdgeCast 的 CDN 服務,在 HTTPS 上還是沒有 SPDY 或是 HTTP/2,對效能的影響還是要測試過才知道...

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