Emmet unable to expand abbreviation with onclick attribute

[yblui]

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

• VS Code Version: 1.59.1
• OS Version: Windows 10

Steps to Reproduce:

1. 输入span[onclick="chsld();"]*12.
2. 按"Tab"。
3. 并未展开Emmet缩写。
4. 我又选择了这段文字。
5. 点击“编辑-Emmet展开缩写”。
6. 仍无任何反应。
7. 注释：该缩写在emmet.io官网运行正常。

[yvvt0379]

1. Input span[onclick="chsld();"]*12.
2. Press "Tab"。
3. The Emmet abbreviation was not expanded.
4. Select the text.
5. Click Edit -> Emmet: Expand Abbreviation.
6. Still nothing happens.
7. Note: This abbreviation works on the official website emmet.io.