<a href="#a%20b"></a> not work in webview

[ddu6]

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

• VS Code Version: 1.60.2
• OS Version: Windows_NT x64 10.0.19043

Steps to Reproduce:

1. Create a webview with the following html

   <a href="#a%20b">click me</a>
   <div style="height:100vh"></div>
   <div id="a b">target</div>

2. Click the anchor element in webview.

After the above steps, we expect to see the div element with text "target" scroll into view. However, nothing happens actually.

[ddu6]

/verified