[Bug] Issue with JSON validation with Rolldown-Vite (Vite 8)

[amcsi]

Reproducible in vscode.dev or in VS Code Desktop?

• Not reproducible in vscode.dev or VS Code Desktop

Reproducible in the monaco editor playground?

• Not reproducible in the monaco editor playground

Monaco Editor Playground Link

No response

Monaco Editor Playground Code

Reproduction Steps

Sorry if this is not an issue with monaco-editor, but I did want to make sure there's a ticket here in case anyone else is experiencing this.

After upgrading from Vite 7 to Vite 8, suddenly JSON validation doesn't work. I get an error (shown lower down), and JSON validation does not happen (no squiggly lines if something is wrong). Weirdly I only get the error when doing vite build, but not with vite dev.

I seem to be getting this issue when there's a part of the schema that validates arrays of objects.

I'll try to provide a minimal reproduce-able repo tomorrow.

TypeError: Cannot read properties of undefined (reading 'include')
    at Z (json.worker-DqU5Wxnl.js:42:13188)
    at l (json.worker-DqU5Wxnl.js:42:19511)
    at Z (json.worker-DqU5Wxnl.js:42:13322)
    at u (json.worker-DqU5Wxnl.js:42:22175)
    at Z (json.worker-DqU5Wxnl.js:42:13299)
    at Qc.getMatchingSchemas (json.worker-DqU5Wxnl.js:42:13045)
    at json.worker-DqU5Wxnl.js:57:6239
    at Z (json.worker-DqU5Wxnl.js:42:13188)
    at l (json.worker-DqU5Wxnl.js:42:19511)
    at Z (json.worker-DqU5Wxnl.js:42:13322)
    at u (json.worker-DqU5Wxnl.js:42:22175)
    at Z (json.worker-DqU5Wxnl.js:42:13299)
    at Qc.getMatchingSchemas (json.worker-DqU5Wxnl.js:42:13045)
    at json.worker-DqU5Wxnl.js:57:6239
    at errors.js:15:31
    at r (helpers.js:93:17)

TypeError: Cannot read properties of undefined (reading 'include')
    at Z (json.worker-DqU5Wxnl.js:42:13188)
    at l (json.worker-DqU5Wxnl.js:42:19511)
    at Z (json.worker-DqU5Wxnl.js:42:13322)
    at u (json.worker-DqU5Wxnl.js:42:22175)
    at Z (json.worker-DqU5Wxnl.js:42:13299)
    at Qc.validate (json.worker-DqU5Wxnl.js:42:12741)
    at s (json.worker-DqU5Wxnl.js:57:1176)
    at json.worker-DqU5Wxnl.js:57:1759
overrideMethod @ installHook.js:1
(anonymous) @ console.js:36
(anonymous) @ lspLanguageFeatures.js:145
Promise.then
_doValidate @ lspLanguageFeatures.js:144
r @ lspLanguageFeatures.js:92
He @ lspLanguageFeatures.js:129
X @ jsonMode.js:90
c @ jsonMode.js:176
Z @ jsonMode.js:187
(anonymous) @ monaco.contribution.js:141
Promise.then
(anonymous) @ monaco.contribution.js:141
(anonymous) @ standaloneLanguages.js:53
_deliver @ event.js:866
_deliverQueue @ event.js:877
fire @ event.js:898
requestRichLanguageFeatures @ languageService.js:78
sT @ textModel.js:238
_createInstance @ instantiationService.js:138
createInstance @ instantiationService.js:109
_createModelData @ modelService.js:246
createModel @ modelService.js:290
x9 @ standaloneCodeEditor.js:332
b9 @ standaloneCodeEditor.js:326
TMe @ standaloneEditor.js:180
we @ index.mjs:1
Q @ index.mjs:1
(anonymous) @ index.mjs:1
(anonymous) @ index.mjs:1
jc @ react-dom.production.min.js:243
Zl @ react-dom.production.min.js:285
(anonymous) @ react-dom.production.min.js:281
x @ scheduler.production.min.js:13
O @ scheduler.production.min.js:14Understand this error

Actual (Problematic) Behavior

No response

Expected Behavior

No response

Additional Context

No response

[amcsi]

I see this is an issue with Vite/oxc actually:

vitejs/vite#22009

Main oxc issues: oxc-project/oxc#20610 and oxc-project/oxc#14316