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Discussion on: The weirdly obscure art of Streamed HTML

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peerreynders

The loading attribute on the <img> image embed (HTML) element deals only with the deferred loading of images.

The article discusses the streaming of the HTML page which typically means flushing the top part of the page early while the server is still assembling the bottom part, perhaps waiting for results from one or more service APIs.

That way the browser can process the document meta data (<head>) element and to start downloading any additional resources required, perhaps even offer some "top of the page search functionality" before the rest of the HTML page has even finished loading.

Marko goes even further by supporting progressive rendering with async fragments.

An example from as far back as late 2014 demonstrates this approach.