[Webkit-unassigned] [Bug 194687] New: Web Inspector: Canvas: recordings with a single frame sometimes missing TreeElement

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=194687

            Bug ID: 194687
           Summary: Web Inspector: Canvas: recordings with a single frame
                    sometimes missing TreeElement
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                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
            Blocks: 175485

# STEPS TO REPRODUCE:
1. inspect <https://devinrousso.com/demo/WebKit/canvas.html>
2. open the Canvas tab
3. start a single-frame recording of the 2D canvas
4. click the button with "8"
5. once the recording loads, select the "Frame 1" tree element
6. start a single-frame recording of the 2D canvas
7. click the button with "9"
 => there is no "Frame 1" tree element, even though the visual action scrubber says there are at least 2 visual actions


Referenced Bugs:

https://bugs.webkit.org/show_bug.cgi?id=175485
[Bug 175485] Web Inspector: [META] Create Canvas tab and top-level overview
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