[Webkit-unassigned] [Bug 256948] New: Unicode regular expressions with codepoints > U+10000 corrupts string replacement in html

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=256948

            Bug ID: 256948
           Summary: Unicode regular expressions with codepoints > U+10000
                    corrupts string replacement in html
           Product: WebKit
           Version: Safari 16
          Hardware: iPhone / iPad
                OS: iOS 16
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: wcshds at gmail.com

Created attachment 466395

  --> https://bugs.webkit.org/attachment.cgi?id=466395&action=review

example

I know there is already a bug report. https://bugs.webkit.org/show_bug.cgi?id=205477

```
"��".replace(/[^��]/u, "")
```

While this regular expression works fine in the console, it still seems to return only the high surrogate in the html.

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