[Webkit-unassigned] [Bug 182725] New: Paste text into input or textarea gives it length (maxlength+2)

Tue Feb 13 00:03:23 PST 2018

https://bugs.webkit.org/show_bug.cgi?id=182725

            Bug ID: 182725
           Summary: Paste text into input or textarea gives it length
                    (maxlength+2)
           Product: WebKit
           Version: Safari 11
          Hardware: Macintosh
                OS: macOS 10.13
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Forms
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: hjvanranden at gmail.com
                CC: cdumez at apple.com, wenson_hsieh at apple.com

When you paste 3 characters into an input or textarea in which the text has length (maxlength - 1), it gets a length of (maxlength + 2), due to two spaces pasted before and after the pasted 1st character of the text.

This can be reproduced in https://embed.plnkr.co/wHAtfCWA1IUi6oKlqc9Y/ or in this source code:
<html><head></head>
<body>
qwe
<input maxlength="3"/>
</body>
</html>

Reproduction scenario:
1. Run the above code
2. Double click qwe to select it
3. Copy
4. Click in the textbox
5. Type aa
6. Press arrow left to position the caret between the a's
7. Paste

Now the textbox contains: a q a
This has length 5, while its maxlength is 3.

-- 
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/20180213/85db5fde/attachment-0001.html>