Applies To:Show Versions
When a CSS link appears at the top of the page, preceding the </head> element, a browser can progressively render the page to quickly display the content, especially beneficial for users who access content-rich pages by means of slower Internet connections.
About inlining documents and image data
If a client requests an HTML document for which the response header contains a Cache-Control: private, Cache-Control: no-store, or Vary: User-Agent header, the BIG-IP system removes the inline content from the response, and caches the inline content.
When you use inlining functionality, the following conventions provide best results.
- Inlining objects typically include stable objects that change infrequently, objects that remain unchanged for several weeks.
- The file size for an inlining object is typically small, less than 2 KB.
- When an inlined object changes on the origin web server, the respective URL resource entry must be updated on the URL Resources page.
- For a user-defined acceleration policy that includes inlining functionality, you will want to use the default HTTP lifetime settings.
- On the Lifetime screen, configure the settings as follows:
- The duration of WebAccelerator Cache Settings must be less than Client Cache Settings.
- The expiration times for the inlined-content Client Cache Settings must occur concurrently with or after the parent Client Cache Settings.