| <?php |
| header("Link: <http://127.0.0.1:8000/resources/square.png>;rel=prefetch", |
| false); |
| ?> |
| <!DOCTYPE html> |
| <html> |
| <head></head> |
| <body> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| var observer = new PerformanceObserver(function(list) { |
| list.getEntries().forEach(function(entry) { |
| if (entry.name.indexOf("square.png") != -1) { |
| // If we found a resource timing entry of the prefetched image, |
| // the test passes. |
| t.done(); |
| } |
| }); |
| }); |
| observer.observe({entryTypes: ["resource"]}); |
| var t = async_test('Makes sure that Link headers prefetch resources'); |
| </script> |
| <script> |
| window.addEventListener("load", t.step_func(function() { |
| var entries = |
| performance.getEntriesByName( |
| "http://127.0.0.1:8000/resources/square.png"); |
| if (entries.length) { |
| assert_equals(entries.length, 1); |
| t.done(); |
| } |
| })); |
| </script> |
| </body> |
| </html> |
