Subdomain demo

1. Open Network tab in Chrome Dev Tools.
2. Click one of the buttons.
3. Wait for the SXG cache to fill (up to 1 minute, typically 15 seconds). Continuing without waiting won't break anything, but keep in mind results may not be final and you may need to repeat the next step one or more times.
4. Click the same button again.
5. If the javascript file is being prefetched it means SXG prefetching from subdomain works.

Prefetch a document with a subresource hosted on a subdomain using:

For the context see this article.