Created
January 2, 2013 19:30
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This snippet is an HTML page with a Javascript that "emulate" Varnish loading the <esi:include> blocks client side. The idea is to create a dynamic website in HTML loaded in S3, with groundbreaking performances. Hope this experiment will inspire better solutions.
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| <!DOCTYPE html> | |
| <html> | |
| <head></head> | |
| <body> | |
| <esi:include src="head.html" alt="not-found.html" onerror="continue"></esi:include> | |
| <esi:include src="body.php" alt="not-found.html" onerror="continue"/> | |
| <h2>HTML</h2> | |
| </esi:include> | |
| <esi:include src="footer.html" alt="not-found.html" onerror="continue"/></esi:include> | |
| <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script> | |
| <script> | |
| function esiGet( obj ) { | |
| var value, alt, error; | |
| for( var j in obj.attributes ){ | |
| switch( obj.attributes[j].name ){ | |
| case "src": value = obj.attributes[j].value; | |
| case "alt": alt = obj.attributes[j].value;; | |
| } | |
| } | |
| $.ajax({ | |
| url: value, | |
| success: function( html ){ | |
| $(obj).replaceWith(html); | |
| }, | |
| error: function(){ | |
| $.ajax({ | |
| url: alt, | |
| success: function( html ){ | |
| $(obj).replaceWith(html); | |
| } | |
| }) | |
| } | |
| }); | |
| }; | |
| var esi = document.getElementsByTagName("esi:include"); | |
| for (var i = 0; i < esi.length; i++) { | |
| esiGet( esi[i] ) | |
| } | |
| </script> | |
| </body> | |
| </html> |
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It's a great day. ServiceWorkers can access the browser's cache, which can be used to accomplish the same end goal. No jQuery required.
https://developers.google.com/web/fundamentals/codelabs/offline/