| <!DOCTYPE html> |
| <style> |
| iframe { |
| height: 300px; |
| width: 300px; |
| } |
| </style> |
| |
| <body> |
| <iframe></iframe> |
| </body> |
| |
| <script src="../../../resources/testharness.js"></script> |
| <script src="../../../resources/testharnessreport.js"></script> |
| <script type="text/javascript"> |
| 'use strict'; |
| var iframe = document.querySelector('iframe'); |
| var loadCount = 0; |
| |
| // The test does the following navigation steps for iframe |
| // 1. load page-with-fragment.html#fragment |
| // 2. load blank2 |
| // 3. go back to page-with-fragment.html |
| async_test(function(t) { |
| iframe.src = './resources/page-with-fragment.html#fragment'; |
| |
| iframe.onload = t.step_func(function() { |
| loadCount += 1; |
| switch (loadCount) { |
| case 1: |
| t.step(function() { |
| assert_regexp_match(iframe.contentWindow.location.href, /page-with-fragment/, 'should be on page-with-fragment page'); |
| // wait one animation frame to ensure layout is run and fragment scrolling is complete |
| iframe.contentWindow.requestAnimationFrame(function() { |
| assert_equals(iframe.contentWindow.scrollY, 800, 'should scroll to fragment'); |
| |
| iframe.contentWindow.history.scrollRestoration = 'manual'; |
| assert_equals(iframe.contentWindow.history.scrollRestoration, 'manual'); |
| |
| // navigate to new page |
| setTimeout(function() { |
| iframe.src = './resources/blank1.html'; |
| }, 0); |
| }); |
| }); |
| break; |
| case 2: |
| t.step(function() { |
| assert_regexp_match(iframe.contentWindow.location.href, /blank1/, 'should be on second blank page'); |
| assert_equals(iframe.contentWindow.history.scrollRestoration, 'auto', 'new page loads should set scrollRestoration to "auto"'); |
| |
| setTimeout(function() { |
| iframe.contentWindow.history.back(); |
| }, 0); |
| }); |
| break; |
| case 3: |
| t.step(function() { |
| // coming back from history, scrollRestoration should be set to manual and respected |
| assert_regexp_match(iframe.contentWindow.location.href, /page-with-fragment/, 'should be back on page-with-fragment page'); |
| iframe.contentWindow.requestAnimationFrame(function() { |
| assert_equals(iframe.contentWindow.history.scrollRestoration, 'manual', 'navigating back should retain scrollRestoration value'); |
| assert_equals(iframe.contentWindow.scrollX, 0, 'should not scroll to fragment'); |
| assert_equals(iframe.contentWindow.scrollY, 0, 'should not scroll to fragment'); |
| t.done(); |
| }); |
| }); |
| break; |
| default: |
| assert_unreached('iframe should load 3 times'); |
| } |
| }); |
| }, 'Manual scroll restoration should take precedent over scrolling to fragment'); |
| </script> |
