Test UI changes and production fixes with the powerful network response overrides in Chrome DevTools. Mock response headers, files, API requests, and more with ease! Chapters: 0:00 - Intro 0:40 - Mock API to test production fixes 1:30 - Setup overrides folder 1:41 - Prototype new UI design 2:13 - Sync and edit overridden files anywhere 2:30 - Testing performance fixes - CLS 3:20 - Overrides doesn’t work in Elements panel 3:40 - Tip: Search panel 4:33 - Redirect overrides dialog 4:54 - Override JavaScript, CSS or other files 5:06 - Override HTTP response headers 6:22 - Auto disable cache when there are overrides 6:40 - Filter overridden response Resources: Override web content and HTTP response headers locally → Cumulative Layout Shift (CLS) → 3 insightful community blog posts: Optimize Page Speed with Overrides → Run Core Web Vitals Experiments with Overrides → Making images lazy-load with Overrides → Watch more DevTools Tips → Subscribe to Chrome for Developers → Questions? Tweet to us: Jecelyn Yeen → Chrome DevTools → #ChromeForDevelopers #Chrome Speaker: Jecelyn Yeen Products Mentioned: Chrome - General
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