[Webkit-unassigned] [Bug 209325] New: Web Inspector: Uncaught Exception: TypeError: this._springEditor.removeListeners is not a function. (In 'this._springEditor.removeListeners()', 'this._springEditor.removeListeners' is undefined)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=209325

            Bug ID: 209325
           Summary: Web Inspector: Uncaught Exception: TypeError:
                    this._springEditor.removeListeners is not a function.
                    (In 'this._springEditor.removeListeners()',
                    'this._springEditor.removeListeners' is undefined)
           Product: WebKit
           Version: WebKit Local Build
          Hardware: All
               URL: https://devinrousso.com/demo/WebKit/test.html
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: drousso at apple.com
                CC: inspector-bugzilla-changes at group.apple.com

Uncaught Exception in Web Inspector.

Steps to Reproduce:
1. inspect <https://devinrousso.com/demo/WebKit/test.html>
2. go to <https://devinrousso.com/demo/WebKit/test.css> in the Sources Tab
3. find the `p` rule
4. hover over the `spring(1 100 10 0)` value for the `animation-timing-function` CSS property
5. click the down arrow
6. click to dismiss the popover

Uncaught Exceptions:
-----------------------
 - TypeError: this._springEditor.removeListeners is not a function. (In 'this._springEditor.removeListeners()', 'this._springEditor.removeListeners' is undefined) (at CodeMirrorSpringEditingController.js:54:43)
    popoverDidDismiss @ CodeMirrorSpringEditingController.js:54:43
    didDismissPopover @ CodeMirrorEditingController.js:195:31
    handleEvent @ Popover.js:192:52
-----------------------

Notes:
Inspected URL:        https://devinrousso.com/demo/WebKit/test.html
Loading completed:    true
Frontend User Agent:  Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/605.1.15 (KHTML, like Gecko)

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