[Bug] Diff demo doesn't work on the project homepage

[sdzialowski-godaddy]

Reproducible in vscode.dev or in VS Code Desktop?

• [x] Not reproducible in vscode.dev or VS Code Desktop

Reproducible in the monaco editor playground?

• [x] Not reproducible in the monaco editor playground

Monaco Editor Playground Link

Simple one. Please fix "diff" demo on the homepage: https://microsoft.github.io/monaco-editor/#:~:text=Side%20by%20side%20live%20comparison

Monaco Editor Playground Code

Reproduction Steps

No response

Actual (Problematic) Behavior

No response

Expected Behavior

No response

Additional Context

No response

[mattgodbolt]

We've had problems with 0.52's diff views in our project; are diffs broken across the board?

[sdzialowski-godaddy]

Not sure, I haven't encounter issue with diff in VSCode, just in the homepage of the editor: https://microsoft.github.io/monaco-editor/#:~:text=Side%20by%20side%20live%20comparison. That is kinda bad that page presenting capabilities of the tool doesn't work :) Probably worth looking into.

[mattgodbolt]

It seems linked to #4837 where things like:

simpleWorker.js:27 Could not create web worker(s). Falling back to loading web worker code in main thread, which might cause UI freezes. Please see https://github.com/microsoft/monaco-editor#faq
u @ simpleWorker.js:27
(anonymous) @ defaultWorkerFactory.js:186Understand this warning
simpleWorker.js:29 Uncaught TypeError: Failed to execute 'importScripts' on 'WorkerGlobalScope': Module scripts don't support importScripts().
u @ simpleWorker.js:29
(anonymous) @ defaultWorkerFactory.js:186Understand this warning
8beb57e2-dd23-4bf5-97c0-918238c44309:1 Uncaught TypeError: Failed to execute 'importScripts' on 'WorkerGlobalScope': Module scripts don't support importScripts().
    at 8beb57e2-dd23-4bf5-97c0-918238c44309:1:24

get logged.

From locally experimenting I discovered I only see this if I serve my content from a CDN. I'm using webpack and according to the help I should be able to set publicPath to make this work, but it still doesn't.

This was working in v0.49, which is the last version we could update to.

[DavidSeptimus]

Definitely not broken across the board. I think you're right to be narrowing it down to something related to the packaging/distribution setup you're using. On my end, I use Vite and npm (no CDN) and it works as expected in v0.52.2.

[ivanmjartan]

I can confirm that problem is with CDN without CDN works as expected ...