Does this issue occur when all extensions are disabled?

Yes, all extensions have been disabled for the workspace

VS Code / OS

• VS Code Version: 1.74.3
• OS Version: Windows 10 Pro, 64-Bit

Steps to Reproduce

Create a HTML file with the following content:

<script>
/* --> */
</script>

🙁 Actual behavior

Console shows 2 problems:

• Expression expected.
• Unterminated regular expression literal.

Full errors:

[{
"resource": "test.html",
"owner": "generated_diagnostic_collection_name#1",
"severity": 8,
"message": "Expression expected.",
"source": "javascript",
"startLineNumber": 2,
"startColumn": 8,
"endLineNumber": 2,
"endColumn": 9
}]

[{
"resource": "test.html",
"owner": "generated_diagnostic_collection_name#1",
"severity": 8,
"message": "Unterminated regular expression literal.",
"source": "javascript",
"startLineNumber": 2,
"startColumn": 10,
"endLineNumber": 2,
"endColumn": 10
}]

It even shows more errors for every pair of -- within the comment block.

e.g.

<script>
/* --> ----------------------------- */
</script>

Results in a total of 16 errors logged (15 x expression expected, 1 x Unterminated regular expression literal.)

🙂 Expected behavior

Ignore whatever is in comments.