Web features explorer

blocking="render"

Limited availability
Tags: api html http Groups: HTML

The blocking="render" attribute for <link>, <script>, and <style> elements blocks rendering until the external script or stylesheet has been loaded. For <link rel="expect">, rendering is blocked until a specific element is in the DOM. To learn more, see HTMLLinkElement: blocking property, HTMLScriptElement: blocking property, HTMLStyleElement: blocking property at MDN.

Compatibility

Specifications