Scott and Wes dive into the cache problem, tackling user-specific data and caching security. From marketing A/B testing to content negotiation, they explore various challenges and solutions, including different URL/query parameters, edge logic, and client-side caching.

Show Notes * 00:00 Welcome to Syntax! * 01:22 Syntax is on YouTube. * 02:16 Let’s talk about the cache problem. * 03:33 User-specific data and caching security. * 06:27 Why might this pop up? + 06:29 Marketing A/B testing - cookie based. + 06:55 User-selected features - such as themes. + 06:58 Language or geo-based items - accept language. + 07:11 Images - WebP for some browsers, jpg for others. + 07:45 JSON/HTML based on accept header. + 08:17 Different encoding. * 08:26 Content negotiation. * 08:54 The solutions. + 09:04 Provide different URLs/Query parameter. + 11:19 Don’t cache the page, cache the data based on query. + 15:01 Implement a “Cache Key” - one render for every option. + Netlify + Fastly + Cloudflare + 18:17 Use edge logic. + 19:52 Just do it client-side.

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