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‎microsoft-edge/web-platform/site-impacting-changes.md‎

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| Insecure downloads over HTTP | Future release (TBD) | | When a user tries to download potentially dangerous content from an HTTP site, the user will receive a UI warning, such as "Insecure download blocked." The user will still have an option to proceed and download the item. Admins can use the `InsecureContentAllowedForUrls` policy to specify HTTP sites for which the warning will be suppressed. Admins can use the `InsecureDownloadWarnings` feature flag to test the impact of this upcoming feature. |
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| Deprecate unload event | Future release (TBD) | | Introduces a new Permission-Policy to allow creating unload event listeners. The default policy is `allow`, but the default policy will gradually be migrated to `deny`, such that unload handlers stop firing on pages, unless a page explicitly opts in to re-enable them. This change is happening in the Chromium project, on which Microsoft Edge is based. For more information, see [Intent to Deprecate: Deprecate unload event](https://groups.google.com/a/chromium.org/g/blink-dev/c/dvusqw9-IhI/m/SBkm_u1RAQAJ). |
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| Removal of cross-origin subframe JavaScript dialogs | Future release (TBD) | | Removes `window.alert`, `window.prompt`, and `window.confirm` from cross-origin iframes. This change is happening in the Chromium project, on which Microsoft Edge is based. For more information, see [Intent to Remove: Cross origin subframe JS Dialogs](https://groups.google.com/a/chromium.org/g/blink-dev/c/hTOXiBj3D6A/m/JtkdpDd1BAAJ). |
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| Deprecate `textprediction` attribute | v132 | | Removes support for the `textprediction` HTML attribute, which is a nonstandard attribute that's used to enable or disable the browser-based Text Prediction feature for long-form text inputs. Instead, use the standardized `writingsuggestions` attribute, which functions similarly to `textprediction`, but also applies to other writing-assistance features that browsers may provide. Sites that explicitly set `textprediction` to `true` or `false` can instead set `writingsuggestions` to the same value. For more information, see [Writing suggestions](https://html.spec.whatwg.org/multipage/interaction.html#writing-suggestions) in the HTML specification. |
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| Deprecate `textprediction` attribute | v133 | | Removes support for the `textprediction` HTML attribute, which is a nonstandard attribute that's used to enable or disable the browser-based Text Prediction feature for long-form text inputs. Instead, use the standardized `writingsuggestions` attribute, which functions similarly to `textprediction`, but also applies to other writing-assistance features that browsers may provide. Sites that explicitly set `textprediction` to `true` or `false` can instead set `writingsuggestions` to the same value. For more information, see [Writing suggestions](https://html.spec.whatwg.org/multipage/interaction.html#writing-suggestions) in the HTML specification. |
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| Removal of Token Binding support | v127, v130 | | Token Binding uses cryptographic certificates on both ends of the TLS connection in an attempt to close the security gap of bearer tokens, which may be lost or stolen. The enterprise policy [AllowTokenBindingsForUrls](/deployedge/microsoft-edge-policies#allowtokenbindingforurls) will no longer be supported, as of v127. Support for the Token Binding protocol will be removed in v130. |
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| Removal of mutation events | v127 | | Removes support for mutation events in Chromium. Use the [MutationObserver](https://developer.mozilla.org/docs/Web/API/MutationObserver) API instead. See [Intent to Deprecate: Mutation Events](https://groups.google.com/a/chromium.org/g/blink-dev/c/qDsKRU-cQ_4/m/isA1mZ_aAAAJ). |
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| Removal of Web SQL | v124 | | Fully removes Web SQL support. In prior releases, Web SQL support was disabled by default but could be re-enabled via the [WebSQLAccess policy](/deployedge/microsoft-edge-policies#websqlaccess). After this change, there is no longer any mechanism to enable Web SQL support. This change is happening in the Chromium project, on which Microsoft Edge is based. For more information, see [Intent to Deprecate and Remove Web SQL](https://groups.google.com/a/chromium.org/g/blink-dev/c/fWYb6evVA-w/m/pziWcvboAgAJ). |

‎microsoft-edge/webview2/concepts/overview-features-apis.md‎

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ms.topic: conceptual
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ms.service: microsoft-edge
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ms.subservice: webview
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ms.date: 10/21/2024
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ms.date: 11/18/2024
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# Overview of WebView2 APIs
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* [Printing](#printing)
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* [Cookies](#cookies)
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* [Image capture](#image-capture)
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* [Control whether the screen capture UI is shown](#control-whether-the-screen-capture-ui-is-shown)
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* [Downloads](#downloads)
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* [Save as](#save-as)
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* [Web notification handling](#web-notification-handling)
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###### Control whether the screen capture UI is shown
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The `ScreenCaptureStarting` event is raised whenever the WebView2 and/or iframe that corresponds to the `CoreWebView2Frame` (or to any of its descendant iframes) requests permission to use the Screen Capture API before the UI is shown. The app can then block the UI from being displayed, or allow the UI to be displayed.
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##### [.NET/C#](#tab/dotnetcsharp)
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* `CoreWebView2` Class:
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* [CoreWebView2.ScreenCaptureStarting Event](/dotnet/api/microsoft.web.webview2.core.corewebview2.screencapturestarting)
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* `CoreWebView2Frame` Class:
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* [CoreWebView2Frame.ScreenCaptureStarting Event](/dotnet/api/microsoft.web.webview2.core.corewebview2frame.screencapturestarting)
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* `CoreWebView2NonClientRegionKind` Enum:
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* [CoreWebView2NonClientRegionKind.Minimize](/dotnet/api/microsoft.web.webview2.core.corewebview2nonclientregionkind)
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* [CoreWebView2NonClientRegionKind.Maximize](/dotnet/api/microsoft.web.webview2.core.corewebview2nonclientregionkind)
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* [CoreWebView2NonClientRegionKind.Close](/dotnet/api/microsoft.web.webview2.core.corewebview2nonclientregionkind)
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* [CoreWebView2ScreenCaptureStartingEventArgs Class](/dotnet/api/microsoft.web.webview2.core.corewebview2screencapturestartingeventargs)
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* [CoreWebView2ScreenCaptureStartingEventArgs.Cancel Property](/dotnet/api/microsoft.web.webview2.core.corewebview2screencapturestartingeventargs.cancel)
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* [CoreWebView2ScreenCaptureStartingEventArgs.Handled Property](/dotnet/api/microsoft.web.webview2.core.corewebview2screencapturestartingeventargs.handled)
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* [CoreWebView2ScreenCaptureStartingEventArgs.OriginalSourceFrameInfo Property](/dotnet/api/microsoft.web.webview2.core.corewebview2screencapturestartingeventargs.originalsourceframeinfo)
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* [CoreWebView2ScreenCaptureStartingEventArgs.GetDeferral Method](/dotnet/api/microsoft.web.webview2.core.corewebview2screencapturestartingeventargs.getdeferral)
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##### [WinRT/C#](#tab/winrtcsharp)
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* `CoreWebView2` Class:
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* [CoreWebView2.ScreenCaptureStarting Event](/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2#screencapturestarting)
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* `CoreWebView2Frame` Class:
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* [CoreWebView2Frame.ScreenCaptureStarting Event](/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2frame#screencapturestarting)
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* `CoreWebView2NonClientRegionKind` Enum:
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* [CoreWebView2NonClientRegionKind.Minimize](/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2nonclientregionkind)
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* [CoreWebView2NonClientRegionKind.Maximize](/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2nonclientregionkind)
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* [CoreWebView2NonClientRegionKind.Close](/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2nonclientregionkind)
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* [CoreWebView2ScreenCaptureStartingEventArgs Class](/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2screencapturestartingeventargs)
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* [CoreWebView2ScreenCaptureStartingEventArgs.Cancel Property](/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2screencapturestartingeventargs)
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* [CoreWebView2ScreenCaptureStartingEventArgs.Handled Property](/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2screencapturestartingeventargs)
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* [CoreWebView2ScreenCaptureStartingEventArgs.OriginalSourceFrameInfo Property](/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2screencapturestartingeventargs)
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* [CoreWebView2ScreenCaptureStartingEventArgs.GetDeferral Method](/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2screencapturestartingeventargs)
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##### [Win32/C++](#tab/win32cpp)
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* [ICoreWebView2_27](/microsoft-edge/webview2/reference/win32/icorewebview2_27)
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* [ICoreWebView2_27::add_ScreenCaptureStarting](/microsoft-edge/webview2/reference/win32/icorewebview2_27#add_screencapturestarting)
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* [ICoreWebView2_27::remove_ScreenCaptureStarting](/microsoft-edge/webview2/reference/win32/icorewebview2_27#remove_screencapturestarting)
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* [ICoreWebView2Frame6](/microsoft-edge/webview2/reference/win32/icorewebview2frame6)
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* [ICoreWebView2Frame6::add_ScreenCaptureStarting](/microsoft-edge/webview2/reference/win32/icorewebview2frame6#add_screencapturestarting)
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* [ICoreWebView2Frame6::remove_ScreenCaptureStarting](/microsoft-edge/webview2/reference/win32/icorewebview2frame6#remove_screencapturestarting)
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* [ICoreWebView2FrameScreenCaptureStartingEventHandler](/microsoft-edge/webview2/reference/win32/icorewebview2framescreencapturestartingeventhandler)<!-- win32 only -->
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* [ICoreWebView2ScreenCaptureStartingEventArgs](/microsoft-edge/webview2/reference/win32/icorewebview2screencapturestartingeventargs)
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* [ICoreWebView2ScreenCaptureStartingEventArgs::get_Cancel](/microsoft-edge/webview2/reference/win32/icorewebview2screencapturestartingeventargs#get_cancel)
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* [ICoreWebView2ScreenCaptureStartingEventArgs::get_Handled](/microsoft-edge/webview2/reference/win32/icorewebview2screencapturestartingeventargs#get_handled)
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* [ICoreWebView2ScreenCaptureStartingEventArgs::get_OriginalSourceFrameInfo](/microsoft-edge/webview2/reference/win32/icorewebview2screencapturestartingeventargs#get_originalsourceframeinfo)
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* [ICoreWebView2ScreenCaptureStartingEventArgs::GetDeferral](/microsoft-edge/webview2/reference/win32/icorewebview2screencapturestartingeventargs#getdeferral)
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* [ICoreWebView2ScreenCaptureStartingEventArgs::put_Cancel](/microsoft-edge/webview2/reference/win32/icorewebview2screencapturestartingeventargs#put_cancel)
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* [ICoreWebView2ScreenCaptureStartingEventArgs::put_Handled](/microsoft-edge/webview2/reference/win32/icorewebview2screencapturestartingeventargs#put_handled)
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* [ICoreWebView2ScreenCaptureStartingEventHandler](/microsoft-edge/webview2/reference/win32/icorewebview2screencapturestartingeventhandler)<!-- win32 only -->
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* `COREWEBVIEW2_NON_CLIENT_REGION_KIND` enum:
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* [COREWEBVIEW2_NON_CLIENT_REGION_KIND_MINIMIZE](/microsoft-edge/webview2/reference/win32/webview2-idl#corewebview2_non_client_region_kind)
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* [COREWEBVIEW2_NON_CLIENT_REGION_KIND_MAXIMIZE](/microsoft-edge/webview2/reference/win32/webview2-idl#corewebview2_non_client_region_kind)
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* [COREWEBVIEW2_NON_CLIENT_REGION_KIND_CLOSE](/microsoft-edge/webview2/reference/win32/webview2-idl#corewebview2_non_client_region_kind)
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---
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#### Downloads
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