[Bug] HTML language does not recognize inline <script type="module"> as JavaScript

[Yoplitein]

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 Code

monaco.editor.create(document.getElementById('container'), {
	value: `<script type="module">\n\tconsole.log("hello");\n</script>`,
	language: 'html'
});

Actual Behavior

The contents of the script tag are marked as language vs.editor.nullLanguage, precluding highlighting and, upon editing or merely moving the cursor within the tag, causing various callbacks for editor features to throw Unexpected languageId when calling LanguageConfigurationRegistry.getLanguageConfiguration.

Expected Behavior

Inline code is recognized as JavaScript, is syntax highlighted, and editing/navigation does not raise exceptions.

Additional Context

This began causing exceptions in version 0.32.0, with 0.31.1 and prior nothing is raised but the inline code is still similarly marked as vs.editor.nullMode.

[hediet]

I can reproduce. It seems like type="module" tokenizes the content as language module, which does not exist - thus the error. type="html"or type="css" works as expected.

[CetinSert]

Interestingly, type=module (no quotes) works just fine!

[hediet]

We fixed this in vscode. The next monaco editor version will be released soon.

[Prinzhorn]

Seems fixed in 0.33.0, my app works again. You can also close #3090

[Delagen]

0.34.0 has this issue also

<script type="text/javascript">
var qd = {};
</script>

Any click inside script tag produce

[jonatanklosko]

Same with Markdown, when annotating a code code block with unknown language:

```mermaid
graph TD;
  A-->B;
  A-->C;
  B-->D;
  C-->D;
```

Error:

errors.ts:21 Uncaught Error: Language id "vs.editor.nullLanguage" is not configured nor known

Error: Language id "vs.editor.nullLanguage" is not configured nor known
    at f (languageConfigurationRegistry.ts:130:10)
    at c.getLanguageConfiguration (languageConfigurationRegistry.ts:113:13)
    at u.getLanguageConfiguration (tokenizationTextModelPart.ts:329:45)
    at u.getWordAtPosition (tokenizationTextModelPart.ts:350:9)
    at Ot.getWordAtPosition (textModel.ts:1860:42)
    at F._getWord (wordHighlighter.ts:355:21)
    at F._run (wordHighlighter.ts:373:21)
    at F._onPositionChanged (wordHighlighter.ts:347:8)
    at wordHighlighter.ts:224:9
    at t.invoke (event.ts:607:17)
    at errors.ts:26:12

(reproduced on the https://microsoft.github.io/monaco-editor playground).

Note that this worked fine on 0.33.0 and broke on 0.34.0.

[pansinm]

1. reproducible in the monaco editor playground

monaco.editor.create(document.getElementById('container'), {
	value: "```notsupport\nerror when press enter\n```",
	language: 'markdown'
});

2. solve this problem

+ monaco.languages.register({id: 'vs.editor.nullLanguage'})
+ monaco.languages.setLanguageConfiguration('vs.editor.nullLanguage', {})

monaco.editor.create(document.getElementById('container'), {
	value: "```notsupport\nerror when press enter\n```",
	language: 'markdown'
});

[hediet]

Error: Language id "vs.editor.nullLanguage" is not configured nor known

This will be fixed with the next release of the monaco editor.

Inline code is recognized as JavaScript, is syntax highlighted,

This is the remaining feature request of this issue.

[silverwind]

This will be fixed with the next release of the monaco editor.

Was this fix released?

[silverwind]

Tested #2962 (comment) in playground, the error is present in 0.34.1 and gone in 0.35.0 so this issue should be closed.

[CetinSert]

I have just tested this again:

• ❌ 0.33.0
• ✔ 0.34.0