What are the best practices for developing secure and performant Safari browser extensions that involve JavaScript?

Nov 3, 2013 ... 2 Answers 2 · The fonts. The browser uses fonts (via the font-family css property) to display text on the page. · The rendering engine. · The ... HTML, CSS, and JavaScript are the core web technologies to build web pages or web apps. HTML presents the structure of the pages or the application using markup ... Sep 15, 2021 ... ... JS. Unfortunately, it only compiles to bytecode and not machine code, and does not support all the features we need. Some non-public ... Apr 9, 2023 ... Safari's Export As PDF uses macOS's Quartz engine to create a PDF 'version' of the rendered webpage. So no 'code' that's in the HTML gets ... With a blazing-fast JavaScript engine, Safari is the world's fastest browser. ... Interact with text in any image or paused video on the web using functions like ... Nov 20, 2023 ... “Because Safari does not properly isolate webpages ... The policies require other browser apps using iOS to use Safari's JavaScript engine ... Apr 10, 2025 ... js) often do ... JavaScript engines expose a public API which application developers can use to integrate JavaScript into their software. 2 All browsers are required to use Safari's internal framework Webkit and Safari's internal javascript engine webkit as ... However if iOS did not ban ... May 30, 2023 ... JavaScriptCore which powers the Safari browser ... Execution happens in the JavaScript engine call stack using the execution context. Safari has JavaScriptCore (also called Nitro); Edge was originally based on Chakra but has more recently been rebuilt using Chromium and the V8 engine. and many ...