Rediger

Runtime 134.0.3124.44 (Mar. 10, 2025)

Release notes for Microsoft Edge WebView2 Runtime, release date: Mar. 10, 2025.

In addition to the following WebView2 Runtime improvements, you can also use the new web platform features from Microsoft Edge 134; see Microsoft Edge 134 web platform release notes (Mar. 2025).

Bug fixes

  • Extensions won't get disabled in WebView2 by using AddBrowserExtensionAsync, regardless of whether developer mode is on. (Issue #5113)

  • Disabled background update of network time. (Issue #5047)

  • Fixed the download popup not being displayed when target="_blank". (Issue #5063)

  • Added the missing Close button in the Download flyout.

  • Fixed a race condition that occurred when the Web Request Response event never occurs.

  • Fixed a regression where display changes can cause WebView2 to render smaller than app window.

  • Enabled the IsolateSandboxedIframes upstream feature for WebView2.

  • Prevented deleting a service worker when the version changes.

  • The CleanUpSome API in Hostobject now only does garbage collection for the full heap. CleanUpSome has been removed from the V8 engine.

  • Fixed a regression of AreBrowserAcceleratorKeysEnabled. (Issue #5033)

  • Fixed a bug where IsDefaultDownloadDialogOpenChanged wasn't triggered when a dialog is closed by using the keyboard. (Issue #4807)

See also

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