File: remove-element-and-scroll.html

package info (click to toggle)
thunderbird 1%3A140.3.1esr-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 4,608,628 kB
  • sloc: cpp: 7,671,698; javascript: 5,901,131; ansic: 3,898,955; python: 1,413,270; xml: 653,997; asm: 462,284; java: 180,948; sh: 113,489; makefile: 20,460; perl: 14,288; objc: 13,059; yacc: 4,583; pascal: 3,352; lex: 1,720; ruby: 1,222; exp: 762; sql: 715; awk: 580; php: 436; lisp: 430; sed: 70; csh: 10
file content (32 lines) | stat: -rw-r--r-- 1,250 bytes parent folder | download | duplicates (23) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
<!DOCTYPE html>
<head>
  <title>Images with loading='lazy' load being removed and then scrolled to</title>
  <script src="/resources/testharness.js"></script>
  <script src="/resources/testharnessreport.js"></script>
  <script src="common.js"></script>
</head>

<body>
  <img id="in_viewport" src='resources/image.png?in_viewport&pipe=trickle(d1)'>
  <div style="height:1000vh"></div>
  <div id="below_viewport_div"></div>
  <img id="below_viewport" src='resources/image.png?below_viewport' loading="lazy">

  <script>
    const in_viewport_element = document.getElementById("in_viewport");
    const below_viewport_element = document.getElementById("below_viewport");
    const below_viewport_div = document.getElementById("below_viewport_div");

    async_test(t => {
      below_viewport_element.onload = t.unreached_func("Removed loading=lazy image " +
        "should not load when its old position is scrolled to.");
      below_viewport_element.remove();

      in_viewport_element.onload = () => {
        below_viewport_div.scrollIntoView();
        t.step_timeout(t.step_func_done(), 2000);
      };
    }, "Test that <img> below viewport is not loaded when removed from the " +
       "document and then scrolled to");
  </script>
</body>