iframes.sub.html (5036B)
1 <!doctype html> 2 <title>Navigating to text fragment directives in iframes</title> 3 <meta charset=utf-8> 4 <meta name="timeout" content="long"> 5 <link rel="help" href="https://wicg.github.io/ScrollToTextFragment/"> 6 <script src="/resources/testharness.js"></script> 7 <script src="/resources/testharnessreport.js"></script> 8 <script> 9 function getResult(iframe) { 10 return new Promise((resolve) => { 11 window.addEventListener('message', (e) => { 12 resolve(e.data); 13 }, {once: true}); 14 iframe.contentWindow.postMessage('getResult', '*'); 15 }); 16 } 17 18 function reset(iframe) { 19 return new Promise((resolve) => { 20 window.addEventListener('message', (e) => { 21 resolve(); 22 }, {once: true}); 23 iframe.contentWindow.postMessage('reset', '*'); 24 }); 25 } 26 27 function runTests() { 28 const attribute_iframe = document.getElementById('srcattrib'); 29 const sameorigin_iframe = document.getElementById('sameorigin'); 30 const crossorigin_iframe = document.getElementById('crossorigin'); 31 32 // Check behavior that occurs when a text fragment is specified directly in 33 // an iframe's src attribute. We expect the text fragment to be blocked. 34 promise_test(t => new Promise(async resolve => { 35 // No reset since we're checking the hash specified in the `src` attribute. 36 const data = await getResult(attribute_iframe); 37 resolve(data); 38 }).then( data => { 39 assert_equals(data.href.indexOf(':~:'), -1, 'Expected fragment directive to be stripped from the URL.'); 40 assert_equals(data.scrollPosition, 'top', 'Should not scroll to text fragment'); 41 }), 'Text fragment specified in iframe.src'); 42 43 // Check behavior when we set a text fragment using script from a 44 // same-origin parent. The text fragment should be allowed because this is 45 // a same-document navigation initiated by an origin that's same-origin 46 // with the current document. 47 promise_test(t => new Promise(async resolve => { 48 await reset(sameorigin_iframe); 49 sameorigin_iframe.contentWindow.location = `${sameorigin_iframe.src}#:~:text=Target`; 50 const data = await getResult(sameorigin_iframe); 51 resolve(data); 52 }).then( data => { 53 assert_equals(data.href.indexOf(':~:'), -1, 'Expected fragment directive to be stripped from the URL.'); 54 assert_equals(data.scrollPosition, 'target', 'Should scroll to text fragment'); 55 }), 'Navigate same-origin iframe via window.location'); 56 57 // Check behavior when we set a text fragment using script from a 58 // cross-origin parent. The text fragment should be blocked because the 59 // initiating origin is not same-origin with the current document. 60 promise_test(t => new Promise(async resolve => { 61 await reset(crossorigin_iframe); 62 crossorigin_iframe.contentWindow.location = `${crossorigin_iframe.src}#:~:text=Target`; 63 const data = await getResult(crossorigin_iframe); 64 resolve(data); 65 }).then( data => { 66 assert_equals(data.href.indexOf(':~:'), -1, 'Expected fragment directive to be stripped from the URL.'); 67 assert_equals(data.scrollPosition, 'top', 'Should not to scroll to text fragment.'); 68 }), 'Navigate cross-origin iframe via window.location'); 69 70 // Check the element-id fallback behavior when the text is not found. We 71 // should fallback to a regular element-id hash navigation. 72 promise_test(t => new Promise(async resolve => { 73 await reset(sameorigin_iframe); 74 sameorigin_iframe.contentWindow.location = `${sameorigin_iframe.src}#elementid:~:text=NonExistentText`; 75 const data = await getResult(sameorigin_iframe); 76 resolve(data); 77 }).then( data => { 78 assert_equals(data.scrollPosition, 'elementid', 'Should scroll to the element-id anchor.'); 79 }), 'Non-matching text with element-id fallback'); 80 81 // Check the element-id fallback behaviour when used across origins. The 82 // text fragment should be blocked across origins but the element id hash 83 // should not. 84 promise_test(t => new Promise(async resolve => { 85 await reset(crossorigin_iframe); 86 crossorigin_iframe.contentWindow.location = `${crossorigin_iframe.src}#elementid:~:text=Target%20Text`; 87 const data = await getResult(crossorigin_iframe); 88 resolve(data); 89 }).then( data => { 90 assert_equals(data.scrollPosition, 'elementid', 'Should scroll to the element-id anchor.'); 91 }), 'Cross-origin with element-id fallback'); 92 } 93 </script> 94 <style> 95 iframe { 96 width: 100px; 97 height: 100px; 98 } 99 </style> 100 <body onload="runTests()"> 101 <div> 102 Same-Origin with text fragment in src attribute: 103 <iframe id="srcattrib" src="iframe-target.html#:~:text=Target"></iframe> 104 </div> 105 <div> 106 Same-Origin: 107 <iframe id="sameorigin" src="iframe-target.html"></iframe> 108 </div> 109 <div> 110 Cross-Origin: 111 <iframe id="crossorigin" src="http://{{hosts[][www]}}:{{ports[http][0]}}/scroll-to-text-fragment/iframe-target.html"></iframe> 112 </div> 113 </body>