[Problem/Bug]: Browser freezes when dragging a link using msWebView2BrowserHitTransparent

[Crayovan]

What happened?

Enabling the msWebView2BrowserHitTransparent feature causes the browser to freeze when dragging and dropping a link.

Importance

Blocking. My app's basic functions are not working due to this issue.

Runtime Channel

Stable release (WebView2 Runtime), Prerelease (Edge Canary/Dev/Beta)

Runtime Version

127.0.2651.105

SDK Version

128.0.2739.42

Framework

Winforms

Operating System

Windows 10

OS Version

10.0.19045

Repro steps

1. Create a sample application or open a demo app
2. Add feature flag --enable-features=msWebView2BrowserHitTransparent
3. Run and load any page that includes a link
4. Left click and hold the mouse button down on the link, drag it anywhere on the page then release the mouse button
5. Browser is frozen. Scrolling with the mouse works, but no clicks work inside the browser

Repros in Edge Browser

No, issue does not reproduce in the corresponding Edge version

Regression

No, this never worked

Last working version (if regression)

No response

[pushkin-]

Now that AllowHostInputProcessing is stable in pre-release, and is impacted by this issue, can this be looked at again? @tochukwuIbeEkeocha

[mr-const]

I have a 100% repro of this issue by simply enabling AllowHostInputProcessing in the latest stable build