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Developer tools · #safari
Safari’s Intelligent Tracking Prevention caps JavaScript‑set cookies to 7 days, causing users to log out unexpectedly. Learn how to use server‑side Set‑Cookie headers to maintain longer sessions.
Stop losing Safari users to the 7-day session cap. Learn how ITP limits client‑side cookies and how to use server‑side Set‑Cookie and the Storage Access API to maintain persistence.
Step‑by‑step guide to diagnose and resolve Safari’s Intelligent Tracking Prevention causing unexpected logouts and cookie loss.
Stop building custom share modals. Learn how to use Safari's Web Share API to trigger native system share sheets, improving user conversion and mobile UX.
Learn how WebKit's multi-tiered JIT compilation and Lazy JIT approach balance JavaScript performance with battery efficiency on iOS.
Learn how to use Safari's Responsive Design Mode to verify CSS media queries, simulate Apple device viewports, and debug layout breakpoints without physical hardware.
I am building a web app that receives date-time strings from a backend and must display them converted to each user's regional time zone. The app needs to work reliably in Safari as well as Chrome and Firefox. My understanding is that Safari's Date parser is stricter than other engines. Strings like 2024-01-15 10:30:00 (space separator instead of the ISO T )
Intelligent Tracking Prevention (ITP) Storage Caps Safari employs Intelligent Tracking Prevention (ITP) to limit the persistence of client-side storage. A documented behavior involves a 7-day cap on the expiration of cookies set via document.cookie , regardless of the specified Max-Age or Expires attributes. There is a distinction between cookies set via HTT
I'm validating a web integration that relies on first-party cookies and localStorage for session state, and I need to test it in Safari without using production credentials. The concern is Intelligent Tracking Prevention: client-side cookies set via document.cookie are documented as capped at 7 days, and storage can reportedly be deleted sooner for domains c
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