[Webkit-unassigned] [Bug 230688] New: Toggling object element display property reloads the object

Thu Sep 23 06:10:55 PDT 2021

https://bugs.webkit.org/show_bug.cgi?id=230688

            Bug ID: 230688
           Summary: Toggling object element display property reloads the
                    object
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: All
                OS: iOS 14
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: DOM
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ben.browitt at gmail.com

When you toggle <object> HTML element between display:block and display:none the object is reloaded.
Didn't happen on iPadOS 14.0 and doesn't happen on Chrome and FireFox.
Tested on iPadOS 15.0, 14.8

To reproduce see that the timestamp on Safari changes every time you click on the 'Toggle Display' button.
On Chrome and Firefox the timestamp doesn't change.
https://jsbin.com/yoboxuhegu/1/edit?html,output

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
</head>
<body>
    <button onclick="toggleDisplay()">Toggle Display</button>
    <object style="display: block;" data="data:text/html;utf-8,<body onload='document.body.innerText = Date.now()'>hello"></object>    
    <script>
        let el = document.querySelector('object');
        let count = 1;
        function log() {
          el.text = count;
          count++;
        }

        function toggleDisplay() {
            let display = el.style.display == 'block' ? 'none' : 'block';
            el.style.display = display;
        }
    </script>
</body>
</html>

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20210923/3709b92a/attachment.htm>