ヘッドレスブラウザ(Chrome)を使ってSPAをスクレイピングする - Qiita
一般的なスクレイピング手法とその問題点 スクレイピングというと、HTTPクライアントライブラリを用いてHTML取得し、HTML/XMLパーサーで解析するというのが一般的だと思います。 この手法の場合、以下の場合にうまく処理できません。 ターゲットのページがJavaScriptにより動的にDOMを操作する場合 HTML/XMLパーサーが取得したHTMLを正しく解釈できない場合(正しくないHTMLでもブラウザはなんとか処理するが、パーサーライブラリは正確なHTMLでないと処理できないことがある) 特に問題になるのは前者でしょう。最近のWebサイトではJavaScriptでDOMを操作することは珍しくなくなってきています。SPAであればなおさら難しく、もはやこういった手法によるスクレイピングは不可能でしょう。 ヘッドレスブラウザによるスクレイピング 動的なDOMやパーサーがうまく解釈できないとい
Getting Started with Headless Chrome | Blog | Chrome for Developers
TL;DR Headless Chrome is shipping in Chrome 59. It's a way to run the Chrome browser in a headless environment. Essentially, running Chrome without chrome! It brings all modern web platform features provided by Chromium and the Blink rendering engine to the command line. Why is that useful? A headless browser is a great tool for automated testing and server environments where you don't need a visi
Agile SCRUM for Trello boards
🌓 Agile SCRUM for Trello boards is a Chrome extension that gives your Trello boards Agile SCRUM features. It’s been a while that I’ve been using Trello as my project management tool, being a Freelancer I found most tools to be overcomplicated and with too many features. Trello is at the sweet spot, provides simplicity and ease of use but with the features that most freelancers and small teams and
NodeList object is finally an Iterable
Can’t be more excited about the new feature currently available in Chrome Beta (currently 51), which is nothing else but the built-in support for NodeList iteration 🎉 It might be so obvious for people coming from outside the web world that whenever you select a list of UI elements, let’s say this one: and you want to do some action on each of them, you might expect something like this: to output
Flash and Chrome
Adobe Flash Player played a pivotal role in the adoption of video, gaming and animation on the web. Today, sites typically use technologies like HTML5, giving you improved security, reduced power consumption and faster page load times. Going forward, Chrome will de-emphasize Flash in favor of HTML5. Here’s what that means for you. Today, more than 90% of Flash on the web loads behind the scenes to
DevTools へのセキュリティ パネル導入について
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Chrome 48: Cast への表示、カスタム通知ボタン、ネットワーク予測など
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The Future of Developing Firefox Add-ons
Today we are announcing some major upcoming changes to Firefox add-ons. Our add-on ecosystem has evolved through incremental, organic growth over the years, but there are some modernizations to Firefox that require some foundational changes to support: Taking advantage of new technologies like Electrolysis and Servo Protecting users from spyware and adware Shortening the time it takes to review ad
Chrome 45 Beta: New ES2015 features, service worker improvements, and media controls
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Continuing to protect Chrome users from malicious extensions
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New JavaScript techniques for rapid page loads
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Push Notifications on the Open Web | Blog | Chrome for Developers
If you ask a room of developers what mobile device features are missing from the web, push notifications are always high on the list. Push notifications allow your users to opt-in to timely updates from sites they love and allow you to effectively re-engage them with customized, engaging content. As of Chrome version 42, the Push API and Notification API are available to developers. The Push API i
Chrome 42 Beta: Push Notifications, Promoting Add to Home Screen and ES6 Classes
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New animation controls in Chrome Canary | Val Head
Visually debugging CSS animation just got a whole lot easier! We’ve needed better debugging tools (or any debugging tools, really) for CSS animation for ages. Now we’re starting to see some show up in browsers! The latest version of Canary now has controls to globally slow down and pause animation right from Dev Tools. It’s such a huge help for both designing and troubleshooting your animations. T
Chrome 38 Beta: New primitives for the next-generation web
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Google Chromeの開発者が語るこれからのWebに必要なこと、ちょっとした懸念点とか - ふろしき Blog
ｰｰｰｰ HTML5はネタが出尽くした。あとは、IE8やAndroid2.X標準ブラウザのような、レガシーブラウザがいなくなればいいだけではないか？ 私は最近、そんな言葉を耳にすることがあるのです。しかし、ブラウザ開発者たちは未だに、そんなことを微塵も感じさせないほど働いています。まだまだ進化の速度を、落とすわけにはいかないようです。2014年06月14日に開催された「HTML5 Night」にて、Google Chromeの開発者である及川卓也氏の口から、これからのChrome開発について語られました。 本記事では、及川氏の講演のダイジェストをお届けします。 今のChromeには何が不足しているのか？ Chromeは2013年の4月に大事な出来事がありました。Appleと一緒に開発していた、「WebKit」をフォークしました。それが、Chroniumと同様なオープンソースのレンダリングエ
Chrome 36 Beta: element.animate(), HTML Imports, and Object.observe()
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Octotree - GitHub code tree
GitHub on steroids Browser extension that enhances GitHub code review and exploration. Features * Fast IDE-like code tree * Quick search in tree format * Bookmark repos, issues, PRs, files * Support GitHub themes * Support private repositories * High performance, working with repositories of any size PRO features * File icon themes * Code font settings * Quick PR navigation * Unlimited bookmarks *
悪意ある Chrome 拡張機能からユーザーを守るために Chrome ウェブストアでホスティングしましょう
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GitHub - OnetapInc/chromy: Chromy is a library for operating headless chrome. 🍺🍺🍺
