Limited Availability
HTML
id: blocking-render
blocking="render"
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.
Baseline Status:
This feature is currently Limited and is missing in at least one major browser engine.
Desktop Browser Engine Support
Google Chrome
105
Supported
Mozilla Firefox
—
Unsupported
Apple Safari
18.2
Supported
Microsoft Edge
105
Supported
Mobile Browser Engine Support
Chrome Android
105
Firefox Android
—
Safari iOS
18.2
Specifications and References