[Problem/Bug]: CustomScheme after TrySuspend, TrySuspendCompleted can't trigger

What happened?

When calling CreateWebViewEnvironment with Options Internal, 'gztime' is defined through CustomsSchemeRegistration. Then, the web page of this protocol is loaded in the webview, and the WebResourceRequested callback is processed to load normally. Then, the TrySuspend function is called on the page, but TrySuspendCompleted cannot be triggered. Loading HTTP URL can be triggered

Importance

Moderate. My app's user experience is affected, but still usable.

Runtime Channel

Stable release (WebView2 Runtime)

Runtime Version

129.0.2792.79

SDK Version

1.0.2792.79

Framework

Win32

Operating System

Windows 10

OS Version

19045.4894

Repro steps

step:

1. calling CreateWebViewEnvironment with Options Internal, 'gztime' is defined through CustomsSchemeRegistration.
2. the web page of gztime://index is loaded in the webview, and the WebResourceRequested callback is processed to load normally.
3. TrySuspend function is called on the page
4. TrySuspendCompleted cannot be triggered.
   excepted:
   TrySuspendCompleted trigger

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

Reproduce the issue using CreateWebViewEnvironment with Internal options, CustomSchemeRegistration for gztime, and the WebResourceRequested callback. Start by comparing the custom-scheme flow with the HTTP URL flow around TrySuspend and TrySuspendCompleted. Done means TrySuspendCompleted is triggered after suspending the custom-scheme page.