[5.x]: ReferenceError when creating new field via FLD

[mmikkel]

What happened?

Description

When creating a new field via a field layout designer, a JS ReferenceError is thrown. Not sure if it actually affects anything.

FieldLayoutDesigner.js:287  Uncaught (in promise) ReferenceError: designer is not defined
    at FieldLayoutDesigner.js:287:15
    at u (FieldLayoutDesigner.js:2:1)
    at Generator.<anonymous> (FieldLayoutDesigner.js:2:1)
    at Generator.next (FieldLayoutDesigner.js:2:1)
    at asyncGeneratorStep (FieldLayoutDesigner.js:2:1)
    at s (FieldLayoutDesigner.js:2:1)
    at FieldLayoutDesigner.js:2:1
    at new Promise (<anonymous>)
    at Object.<anonymous> (FieldLayoutDesigner.js:2:1)
    at Object.handler (FieldLayoutDesigner.js:293:8)
(anonymous) @ FieldLayoutDesigner.js:287
u @ FieldLayoutDesigner.js:2
(anonymous) @ FieldLayoutDesigner.js:2
(anonymous) @ FieldLayoutDesigner.js:2
asyncGeneratorStep @ FieldLayoutDesigner.js:2
s @ FieldLayoutDesigner.js:2
(anonymous) @ FieldLayoutDesigner.js:2
(anonymous) @ FieldLayoutDesigner.js:2
(anonymous) @ FieldLayoutDesigner.js:293
trigger @ Base.js:83
handleSubmitResponse @ CpScreenSlideout.js:556
(anonymous) @ CpScreenSlideout.js:537
Promise.then (async)
submit @ CpScreenSlideout.js:536
(anonymous) @ CpScreenSlideout.js:515
setTimeout (async)
handleSubmit @ CpScreenSlideout.js:514
(anonymous) @ Base.js:153
o @ jquery.js?v=1714682107:2
dispatch @ jquery.js?v=1714682107:2
v.handle @ jquery.js?v=1714682107:2

Steps to reproduce

1. Edit an entry type
2. In the entry type FLD, click "New field"
3. Create a simple Plain Text field and click "Save" in the slideout
4. See error in dev tools console

Expected behavior

Actual behavior

Craft CMS version

5.1.0

PHP version

No response

Operating system and version

macOS 14.3.1, MS Edge 124.0.2478.67

Database type and version

No response

Image driver and version

No response

Installed plugins and versions

None

[brandonkelly]

Fixed in 5.1.1!