Episode 80 of The Web Development Podcast digs into the Accept-Language header and why most web apps ignore it. Lucas explains how the browser tells every server what language the user prefers, yet many apps serve English by default, forcing users to manually switch. Luna asks why this is so common and whether frameworks make it hard. Lucas walks through how to check the header in your server logs, how to use it for initial content negotiation, and a real example from a multilingual e-commerce site that lost 15% conversion on non-English visitors. They also discuss respecting the user's language choice across sessions and common pitfalls like using cookies when the header is more reliable. A practical episode for any developer building for a global audience.

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