[wp-trac] [WordPress Trac] #65381: Uncaught TypeError: Cannot read properties of undefined (reading 'borderColor') in block-editor.min.js on WordPress 7.0

[WordPress Trac]

#65381: Uncaught TypeError: Cannot read properties of undefined (reading
'borderColor') in block-editor.min.js on WordPress 7.0
--------------------------+------------------------------
 Reporter:  dhayalkumarp  |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Editor        |     Version:
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
--------------------------+------------------------------
Description changed by mukesh27:

Old description:

> After updating to WordPress 7.0, the block editor
> shows a blank white page with this error:
>
> Uncaught TypeError: Cannot read properties of
> undefined (reading 'borderColor')
> at AIe (block-editor.min.js:178:89975)
>
> Theme: Blockify
> WordPress Version: 7.0
> PHP Version: (check yours in Site Health)
>
> The error occurs when WordPress 7.0 tries to read
> borderColor from a color palette item that doesn't
> have it defined. This breaks the block editor
> completely showing a blank white page.
>
> Steps to reproduce:
> 1. Install Blockify theme
> 2. Update to WordPress 7.0
> 3. Go to Posts → Add New
> 4. Editor shows blank white page with borderColor error

New description:

 After updating to WordPress 7.0, the block editor shows a blank white page
 with this error:

 `Uncaught TypeError: Cannot read properties of undefined (reading
 'borderColor') at AIe (block-editor.min.js:178:89975)`

 Theme: Blockify
 WordPress Version: 7.0
 PHP Version: (check yours in Site Health)

 The error occurs when WordPress 7.0 tries to read `borderColor` from a
 color palette item that doesn't have it defined. This breaks the block
 editor completely showing a blank white page.

 **Steps to reproduce:**
 1. Install Blockify theme
 2. Update to WordPress 7.0
 3. Go to Posts → Add New
 4. Editor shows blank white page with borderColor error

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Ticket URL: <https://core.trac.wordpress.org/ticket/65381#comment:1>
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