| <!DOCTYPE html> |
| <head> |
| <meta charset="utf-8"> |
| <meta name="timeout" content="long"> |
| <script src="/common/utils.js"></script> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| </head> |
| <body> |
| <script> |
| promise_test(async t => { |
| const iframe = document.createElement("iframe"); |
| const params = new URLSearchParams(); |
| const delays = [200, 100, 150]; |
| params.set("delay1", delays[0]); |
| params.set("delay2", delays[1]); |
| |
| iframe.src = `resources/early-hints-delay.h2.py?${params.toString()}`; |
| document.body.appendChild(iframe); |
| t.add_cleanup(() => iframe.remove()); |
| await new Promise(resolve => iframe.addEventListener("load", resolve)); |
| const [entry] = iframe.contentWindow.performance.getEntriesByType("navigation"); |
| assert_greater_than(entry.firstInterimResponseStart, entry.requestStart + delays[0]); |
| assert_greater_than(entry.finalResponseHeadersStart, entry.firstInterimResponseStart + delays[1]); |
| assert_equals(entry.responseStart, entry.firstInterimResponseStart); |
| }, `Interim response times should correspond to delays (h2)`); |
| </script> |
| </body> |
