[Webkit-unassigned] [Bug 251622] New: Searching for a regular expression that matches the empty string in the web inspector causes it to hang irrecoverably

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=251622

            Bug ID: 251622
           Summary: Searching for a regular expression that matches the
                    empty string in the web inspector causes it to hang
                    irrecoverably
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Mac (Apple Silicon)
                OS: macOS 13
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jed at jedfox.com
                CC: inspector-bugzilla-changes at group.apple.com

To reproduce:

1. Open any page (including about:blank)
2. Open the global search panel and enable searching by regular expressions. (I think this is what I did, I’m now unable to verify)
3. Search for `'isapprox' ||` (without the backticks)
4. hit return to start the search

Expected behavior: no results, or a warning that the regex matches the empty string
Actual behavior: web inspector hangs. There is no way to edit the search text since reopening the search tab causes the search to be conducted again. Also, I cannot find a way to put some text into the search field remotely (such as from a context menu somewhere)

[If you know where the setting that persists the search string is stored, please tell me so that I can get back the use of my search feature!]

macOS 13.2 (22D49)
STP Release 162 (Safari 16.4, WebKit 18615.1.18.2)

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