[webkit-dev] Request for position: blocking="render" attribute on <link>, <script> and <style>

Xiaocheng Hu xiaochengh at chromium.org
Thu Jan 13 18:05:54 PST 2022

Hi webkit-dev,

This is a request for WebKit's position on the blocking="render" attribute
on <link>, <script> and <style> elements.

This is a new feature currently being proposed to the HTML spec:
- Full proposal:
- Discussion at WHATWG: https://github.com/whatwg/html/issues/7131

All current browsers treat stylesheets as render-blocking resources, and do
not start rendering the page before they are loaded. This feature extends
this mechanism by allowing authors to explicitly mark an external resource
also as render-blocking to ensure better page load performance in more

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