CommonMark compliant HTML block inside <p> tag is removed by JSDoc Intellisense

[trivikr]

• VSCode Version: 1.52.1
• OS Version: Darwin x64 19.6.0

Steps to Reproduce:

1. Open the example code in VSCode.
2. Hover over Foo. The Tooltip reads "".
3. Hover over Bar. The Tooltip reads "A basic interface with bar."

The doc comment for Foo is compliant under CommonMark spec 0.29 4.6 HTML Blocks kind 6

• Start condition: line begins the string < followed by p, followed by the string >
• End condition: line is followed by a blank line

Example Code

/**
 * <p>A basic interface with foo.</p>
 */
interface Foo {
  foo: number;
}

let f: Foo; // Tooltip reads ""

/**
 * A basic interface with bar.
 */
interface Bar {
  bar: number;
}

let b: Bar; // Tooltip reads "A basic interface with bar."

Screenshots

Does this issue occur when all extensions are disabled?: Yes

[trivikr]

A similar issue discusses removal of code inside <pre> and <code> tags in #110945, but that appears under CommonMark spec 0.29 4.5 Fenced code blocks

[trivikr]

Looking at the code comments, the makrdownRenderer seems to comply with CommonMark 0.29 spec.

vscode/src/vs/base/browser/markdownRenderer.ts

Line 288 in 6260e65

// HTML tags that can result from markdown are from reading https://spec.commonmark.org/0.29/

[trivikr]

Some findings which could be helpful:

• The markdownRenderer uses marked from vs/base/common/marked/marked:

  vscode/src/vs/base/browser/markdownRenderer.ts

  Line 11 in 6260e65

  import * as marked from 'vs/base/common/marked/marked';

• The renderer is markdown parser from https://github.com/markedjs/marked

  vscode/src/vs/base/common/marked/marked.js

  Lines 1 to 5 in 6260e65

  	/**
  	* marked - a markdown parser
  	* Copyright (c) 2011-2020, Christopher Jeffrey. (MIT Licensed)
  	* https://github.com/markedjs/marked
  	*/

The Marked Demo returns data as per CommonMark spec 0.29 4.6 HTML Blocks kind 6 for provided example.

Screenshot

The example is also given in README under CLI usage https://github.com/markedjs/marked#usage

[mjbvz]

Duplicate of #110945 I believe, just with a different html tag