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  • WebKit Features in Safari 16.4

    Mar 27, 2023 by Patrick Angle, Marcos Caceres, Razvan Caliman, Jon Davis, Brady Eidson, Timothy Hatcher, Ryosuke Niwa, and Jen Simmons ContentsWeb Push on iOS and iPadOSImprovements for Web AppsWeb ComponentsCSSHTMLJavaScript and WebAssemblyWeb APIImages, Video, and AudioWKWebViewDeveloper ToolingWeb InspectorSafari Web ExtensionsSafari Content BlockersNew Restrictions in Lockdown ModeMore Improve

      WebKit Features in Safari 16.4
    • Building secure web apps using Web Workers | Mercari Engineering

      Security is paramount for our users, and we at mercari strive to provide a snappy and safe platform. We recently introduced an additional layer of defence by adding Web Workers to secure the access token. It now protects the users from various kinds of attacks, including token theft from Cross Site Scripting (XSS), Cross Site Request Forgery (CSRF), prototype pollution, zero-day npm package vulner

        Building secure web apps using Web Workers | Mercari Engineering
      • Patterns for Reactivity with Modern Vanilla JavaScript – Frontend Masters Blog

        “Reactivity” is how systems react to changes in data. There are many types of reactivity, but for this article, reactivity is when data changes, you do things. Reactivity Patterns are Core to Web Development We handle a lot with JavaScript in websites and web apps since the browser is an entirely asynchronous environment. We must respond to user inputs, communicate with servers, log, perform, etc.

          Patterns for Reactivity with Modern Vanilla JavaScript – Frontend Masters Blog
        • ESLint v9.0.0 released - ESLint - Pluggable JavaScript Linter

          Highlights This is a summary of the significant changes, both breaking and non-breaking, you need to know about when upgrading from ESLint v8.x to ESLint v9.0.0. Installing Because this is a major release, you may not automatically be upgraded by npm. To ensure you are using this version, run: npm i eslint@9.0.0 --save-dev Copy code to clipboard Migration Guide As there are a lot of changes, we’ve

            ESLint v9.0.0 released - ESLint - Pluggable JavaScript Linter
          • News from WWDC25: WebKit in Safari 26 beta

            Jun 9, 2025 by Jen Simmons, Saron Yitbarek, Jon Davis, Richard Robinson, Eddy Wong, Brandel Zachernuk, Marcos Cáceres, Tim Nguyen, Daniel Liu, Razvan Caliman, Blaze Burg, Qianlang Chen, Brian Weinstein, Aditya Keerthi, Karl Dubost, David Johnson, Luming Yin ContentsSVG IconsEvery site can be a web app on iOS and iPadOSHDR ImagesWebKit in SwiftUI<model> on visionOSImmersive video and audio on visio

              News from WWDC25: WebKit in Safari 26 beta
            • "Five-Point Haskell": Total Depravity (and Defensive Typing)

              I have thought about distilling the principles by which I program Haskell, and how I’ve been able to steer long-lived projects over years of growth, refactorings, and changes in demands. I find myself coming back to a few distinct and helpful “points” (“doctrines”, if you may allow me to say) that have yet to lead me astray. With a new age of software development coming, what does it even mean to

                "Five-Point Haskell": Total Depravity (and Defensive Typing)
              • WebKit Features in Safari 26.0

                Sep 15, 2025 by Jen Simmons, Saron Yitbarek, Jon Davis, Tim Nguyen, Blaze Burg, Marcos Cáceres, Razvan Caliman, Qianlang Chen, Karl Dubost, Kiet Ho, David Johnson, Aditya Keerthi, Daniel Liu, Keith Miller, Abrar Rahman Protyasha, Richard Robinson, Kiara Rose, Ahmad Saleem, Anne van Kesteren, Brian Weinstein, Eddy Wong, Luming Yin, Brandel Zachernuk ContentsCSSEvery site can be a web app on iOS and

                  WebKit Features in Safari 26.0
                • Account hijacking using "dirty dancing" in sign-in OAuth-flows

                  Account hijacking using “dirty dancing” in sign-in OAuth-flows Combining response-type switching, invalid state and redirect-uri quirks using OAuth, with third-party javascript-inclusions has multiple vulnerable scenarios where authorization codes or tokens could leak to an attacker. This could be used in attacks for single-click account takeovers. Frans Rosén, Security Advisor at Detectify goes t

                    Account hijacking using "dirty dancing" in sign-in OAuth-flows
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