How to include external Javascript file in a JSF page

Question

I want to include the URL of jQuery UI http://code.jquery.com/ui/1.9.0/jquery-ui.js in my JSF page. I saw many questions which said

Answer 1

Just use plain HTML

The can only refer local scripts. You'll only miss its dynamic versioning, modularity and relocation advantages, but that should technically not harm for a static and external script.

It's however possible to use a custom ResourceHandler to change the URL of a to be an external URL for pure CDN purposes. OmniFaces CDNResourceHandler is such an example.

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Unrelated to the concrete problem, PrimeFaces components are built around jQuery/UI. Are you absolutely positive that you need a separate instance of jQuery UI library?