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Discussion on: Adaptive Serving using JavaScript and the Network Information API

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Šime Vidas

I’m not so sure that silently replacing the video with a poster image is a good idea. What if a user shares the page on social media after watching the video, and some users who open the shared page are served the image instead? Would these users not think that the website is broken somehow as they expected to see a video?

I think a better approach would be to just prevent the video from auto-playing instead. But then, that sounds like a job for the browser, not the website (a “Don’t auto-play videos on slow connections” browser setting).