scripts) and working out the optimal number of items to push (we currently allow up to 50 resources per page). We're particularly interested in experiences with pushing different types of resources (images vs. Load the jQuery Flickr Gallery plugin after JQuery library. 1 2 3 4 2.Please let us know how you use Server Push. Load the necessary jQuery library and the jQuery prettyPhoto plugin's JS and CSS files in the document. In Google Chrome Canary's Developer view the pushed assets can be clearly seen. Link: rel=preload as=script, rel=preload as=script, rel=preload as=script As the response passes through CloudFlare those assets are removed from the Link header, pushed and added to the Cf-H2-Pushed header: cache-control:public, max-age=30 Link: rel=preload as=style, rel=preload as=script, rel=preload as=image, rel=preload as=image, rel=preload as=script, rel=preload as=script, rel=preload as=scriptĬloudFlare decides to HTTP/2 Server Push the assets /assets/css/screen.css?v=5fc240c512, /content/images/2016/06/Timeouts-001.png, /content/images/2016/06/Timeouts-002.png and /assets/js/?v=5fc240c512. That made it a little difficult to debug problems with Link and Server Push so we have added a header called Cf-H2-Pushed which contains the assets that were pushed.įor example, browsing to this recent blog post results in the origin web server sending the following headers: Cache-Control: public, max-age=0 When CloudFlare reads a Link header sent by an origin web server it will remove assets that it pushes from the Link header passed on to the web browser. This change is live and was used to push assets in this blog post to your browser if your browser supports HTTP/2. Compatible browsers: Chrome, Edge, Firefox, Opera, Safari Responsive: yes Dependencies: magnific-popup. roll over, hover caption 3.Magnific Popup script 4. We have now addressed that problem and it is possible to request that multiple assets be pushed in a single Link header. Magnific Gallery Nice responsive gallery with: 1. However, there was a serious restriction in our initial version: it was not possible to specify more than one asset per Link header for Server Push and many CMS and web development platforms would not allow multiple Link headers. We also showed how to make Server Push work from within PHP code and many people started testing and using this feature. Our implementation of Server Push made use of the HTTP Link header as detailed in W3C Preload Working Draft. We did this so that our customers could iterate on this new functionality. In April we announced that we had added experimental support for HTTP/2 Server Push to all CloudFlare web sites.
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