CoreWebView2.NewWindowRequested not fired when tab opened by extension

[RendijsSmukulis]

Description

• CoreWebView2.NewWindowRequested does not fire when an extension calls chrome.tabs.create. This means a webview2-owned window opens with the site, rather than allowing the host application to handle this request.

Version
SDK: 1.0.2106-prerelease
Runtime: Version 117.0.2045.47 (Official build) (64-bit)
Framework: WPF
OS: Win11

Regression
Was this working before but has regressed? No.

Repro Steps

• Clone https://github.com/RendijsSmukulis/webview2ExtensionPopupRepro
• Run it. Observe that there is a handler for CoreWebView2.NewWindowRequested registered before extensions are loaded

Expected:

• CoreWebView2OnNewWindowRequested handler fires, and no new window is shown

Actual:

• Website opens in a "webview2 window", and can't be "owned" by the application.

AB#47326790

[dianaqu]

Thanks for reporting the issue. Let me try repro first.

[dianaqu]

Hi. This issue is fixed with Canary 123.0.2389.0