"TypeError: Cannot read property 'shallowEqualKeys' of undefined" if loading a spec from localStorage

[hkosova]

Q&A (please complete the following information)

• OS: Windows 10
• Browser: Chrome, Firefox, Edge latest
• Method of installation: https://editor.swagger.io
• Swagger-Editor version: 3.8.0
• Swagger/OpenAPI version: OpenAPI 3.0

Describe the bug you're encountering

If you paste the spec provided below into Editor and then refresh the page, this causes many console errors, and schemas cannot be expanded in the UI.

Steps to reproduce

1. Open an Incognito/Private window in your browser.
2. Open the browser dev tools.
3. Go to https://editor.swagger.io.
4. Clear the default contents (Ctrl+A, Del), and paste the following spec:

openapi: 3.0.0
info:
  title: test
  version: 0.0.0
paths: {}
components:
  schemas:
    MySchema:
      type: string
      enum:
        - foo
        - bar

=> Note that UI is rendered correctly, and there are no errors in the browser console.
5. Refresh the editor page (F5).
6. Try to expand the schema in the UI.

Actual results

Schema cannot be expanded in the UI, and there are errors in the browser console:

TypeError: Cannot read property 'shallowEqualKeys' of undefined
    at t.value (components.jsx:24)
    at updateComponent (ReactCompositeComponent.js:625)
    at u.receiveComponent (ReactCompositeComponent.js:544)
    at Object.receiveComponent (ReactReconciler.js:122)
    at Object.updateChildren (ReactChildReconciler.js:107)
    at K._reconcilerUpdateChildren (ReactMultiChild.js:209)
    at K._updateChildren (ReactMultiChild.js:308)
    at K.updateChildren (ReactMultiChild.js:295)
    at K._updateDOMChildren (ReactDOMComponent.js:944)
    at K.updateComponent (ReactDOMComponent.js:758)

Expected results

No console errors. Schema can be expanded in the UI.

[char0n]

Working on fix by introducing top level Error Boundary that will simulate the behavior of v3.

[char0n]

[email protected] has been released yesterday, containing proper error handling using React Error Boundaries. Working on fix for Editor.

[char0n]

Fix released as [email protected]