Chrome Tech Night #9 @2016/2/9
09 Feb 2017 Finding Ticketbleed Ticketbleed (CVE-2016-9244) is a software vulnerability in the TLS stack of certain F5 products that allows a remote attacker to extract up to 31 bytes of uninitialized memory at a time, which can contain any kind of random sensitive information, like in Heartbleed. If you suspect you might be affected by this vulnerability, you can find details and mitigation instr
With advent of fast growing live video mobile apps, many developers are fast tracking their own video capabilities in their new app development. If you’re building any kind of multi-party live video app, then you’re likely to end up using WebRTC. But the question, should you go out and build everything yourself or use a WebRTC platform provider? Platform providers include Tokbox, Twilio, Agora.io,
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A couple years ago, I took a road trip from Wisconsin to Washington and mostly stayed in rural hotels on the way. I expected the internet in rural areas too sparse to have cable internet to be slow, but I was still surprised that a large fraction of the web was inaccessible. Some blogs with lightweight styling were readable, as were pages by academics who hadn’t updated the styling on their websit
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8 February, 2017 Code Smells in CSS Revisited Written by Harry Roberts on CSS Wizardry. Table of Contents @extend String Concatenation for Classes Background Shorthand Key Selector Appearing More Than Once A Class Appearing in Another Component’s File BEM Mixes CSS @import Way back in 2012, I wrote a post about potential CSS anti-patterns called Code Smells in CSS. Looking back on that piece, I st
We need a heading element without implicit order. We need a heading element that can be updated without being replaced. Please consider <h>. The <h> element is desired for situations where the “ranking” context changes for a heading, either before or after the source is sent to the browser. The current process of figuring out the appropriate “rank” of a heading is as unnecessary as requiring <li>
If you need to debug a React page somewhere other than Chrome on desktop (a mobile browser, an embedded webview, Safari, etc), the react-devtools package is for you! It is also useful if your app is inside an iframe. It works both with React DOM and React Native. Usage with React Native Install the react-devtools package globally: with yarn: yarn global add react-devtools or with npm: npm install
How Backplane Agents phone home using HTTP/2 Backplane is designed to make routing, shaping, and securing network traffic easy and safe, for every application in any environment. One of the key aspects of Backplane’s design that makes this all possible is based on an extension to the HTTP/2 protocol extension that we call h2s. In this post I’ll tell you a little bit about h2s, and describe three o
TLS1.3動いたシリーズの第3回目(?) WiresharkはTLSの実装一覧ページ(URL)では、以前よりTLS1.3対応をうたっていたがあまり出来は芳しくなかった。しかし、先日 TLS1.3絡みのコミットが幾つか入ったので、実際に改善されていることを確認した コミットログ(URL)を見る限りdecryptにも対応しているようなので、復号もできそうだが、TLS1.3になって復号に必要なパラメータが変わったため SSLKEYLOGFILEまわりの仕組みがどうなってるかはよくわからない。picotlsだと、うまくいくかもしれない(URL) 2019年5月追記: すでに復号対応しております。SSLKEYLOGFILEを食わせれば復号できる。 ビルド 今回は簡単に、CUI版であるTsharkをtrustyでビルドする sudo apt-get install -y flex libglib2.
In the CSS Grid Layout Specification, a grid is defined as the following - The grid is an intersecting set of horizontal and vertical grid lines that divides the grid container’s space into grid areas, into which grid items (representing the grid container’s content) can be placed Err… what? 🤔 CSS Grid Layout introduces a lot of new concepts; there are 17 new properties to learn, and many more ne
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