What are the security implications of allowing user scripts to modify web pages in Safari?

Sep 28, 2021 ... Here's the thing: there's only one JavaScript engine that supports tail call optimization, and that's the one used by Safari: JavaScriptCore. JavaScriptCore is the built-in JavaScript engine for WebKit, which ... Reoptimization uses exponential back-off to defend against pathological code. Enable JavaScript · Edge (Windows 11) · Safari · Chrome · Was this information helpful? · Thank you for your feedback! Feb 20, 2023 ... ... Safari is really fast in JavaScript ... According to reliable data, the browsers using WebKit as the main engine are faster in JavaScript than the ... ... javascript rendering (the last two 'Sunspider' tests). Remember, both Safari and Chrome are using Apple's Safari javascript and rendering engine. The is no ... WebKit is the web browser engine used by Safari, Mail, App Store, and many other apps on macOS, iOS, and Linux. Get started contributing code, or reporting bugs ... Feb 6, 2018 ... Bad JS. Looks like your run-of-the-mill script kiddie stuff, where you lock the browser by overloading the JS engine. Cool, so time to report ... Oct 17, 2024 ... Add-ins also need a JavaScript engine to run the JavaScript. Both ... Those add-ins use the Safari-based WKWebView or the Android-based ... Dec 11, 2023 ... Specifically, JavaScriptCore uses NaN values to encode different types of information. JSValue. Most JavaScript engines choose to represent ... Jul 28, 2017 ... Hmmm on Apple iOS you are always using Safari like it or not. Google Chrome in iOS uses Safari rendering engine and Javascript engine as does ...