| <!DOCTYPE html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| promise_test(async t => { |
| // Wait for after the load event so that the navigation doesn't get converted |
| // into a replace navigation. |
| await new Promise(resolve => window.onload = () => t.step_timeout(resolve, 0)); |
| |
| location.hash = "#1"; |
| assert_equals(location.hash, "#1"); |
| location.hash = "#2"; |
| assert_equals(location.hash, "#2"); |
| |
| let anchor = document.createElement("a"); |
| anchor.href = "#3"; |
| anchor.onclick = () => { |
| history.back(); |
| }; |
| |
| let navigations = []; |
| let navigationsPromise = new Promise(resolve => { |
| onpopstate = () => { |
| navigations.push(location.hash); |
| if (navigations.length === 2) { |
| resolve(); |
| } |
| } |
| }); |
| |
| anchor.click(); |
| await navigationsPromise; |
| |
| // We were on #2 when history.back() was called so we should be on #1 now. |
| assert_equals(location.hash, "#1"); |
| |
| // While the history navigation back to "#1" was pending, we should have navigated to "#3". |
| assert_array_equals(navigations, ["#3", "#1"]); |
| }, "Anchor with a fragment href and a click handler that navigates back"); |
| </script> |
