[Webkit-unassigned] [Bug 216307] New: Uncaught Exception: TypeError: null is not an object (evaluating 'this.listItemElement.classList')

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=216307

            Bug ID: 216307
           Summary: Uncaught Exception: TypeError: null is not an object
                    (evaluating 'this.listItemElement.classList')
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
               URL: https://ionicframework.com/docs
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: graouts at webkit.org
                CC: inspector-bugzilla-changes at group.apple.com

Uncaught Exception in Web Inspector with a ToT build.

Steps to Reproduce:
1. Go to https://ionicframework.com/docs and open the Web Inspector
2. In the iOS device on the right of the page, scroll down to "Modal" and click on that row
3. Click on the "Open Modal" button

Uncaught Exceptions:
-----------------------
 - TypeError: null is not an object (evaluating 'this.listItemElement.classList') (at DOMTreeElement.js:1449:41)
    _nodeTitleInfo @ DOMTreeElement.js:1449:41
    updateTitle @ DOMTreeElement.js:1314:55
    _updateModifiedNodes @ DOMTreeUpdater.js:128:46
    ? @ DOMTreeUpdater.js:53:34
    _execute @ Debouncer.js:132:29
    ? @ Debouncer.js:86:26
-----------------------

Notes:
Inspected URL:        https://ionicframework.com/docs
Loading completed:    true
Frontend User Agent:  Mozilla/5.0 (Macintosh; Intel Mac OS X 11_0) AppleWebKit/605.1.15 (KHTML, like Gecko)

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