How to disable download protection

[viethuyphan]

Hi there,

I'm using WPF Webview2 to render webpages. I would like to disable download protection feature in order to not show warning dialog when I download a harmful file (.eml file in my case).
I tried to add some additional browser arguments as bellow but it didn't work, the warning dialog is still displayed:
--disable-features=msSmartScreenProtection
--safebrowsing-disable-download-protection
--safebrowsing-disable-extension-blacklist

var coreViewOptions = new CoreWebView2EnvironmentOptions(
                "--disable-features=msSmartScreenProtection --safebrowsing-disable-download-protection --safebrowsing-disable-extension-blacklist", "de");

var webView2Environment = await CoreWebView2Environment.CreateAsync(null, null, coreViewOptions);

await webView.EnsureCoreWebView2Async(webView2Environment);

Are there any missing arguments? Or
Are there any other ways to disable download protection?

Thanks,
Huy

AB#36984714

[champnic]

Hey @viethuyphan - would you mind sharing a screenshot of the download protection dialog you are referencing?

[viethuyphan]

Hi @champnic,

Here it is. Sorry for my mistake. It should be attached into the original post.

Hope it helps,
Huy

[champnic]

Thanks @viethuyphan for the clarification! Looks like that "harmful" detection is separate from SmartScreen. I haven't found a way or flag to turn it off.

If you are ok with hiding the UI altogether you can handle the DownloadStarting event.
https://docs.microsoft.com/en-us/dotnet/api/microsoft.web.webview2.core.corewebview2.downloadstarting?view=webview2-dotnet-1.0.1056-prerelease

Otherwise, would you want me to open this as a feature request?

[viethuyphan]

Hi @champnic ,

Thanks for your suggestion. Yes, please open this as a feature request. I think it will be useful not only for me but also others.

Regards,
Huy

[sono-T]

Thanks @viethuyphan for the clarification! Looks like that "harmful" detection is separate from SmartScreen. I haven't found a way or flag to turn it off.

If you are ok with hiding the UI altogether you can handle the DownloadStarting event. https://docs.microsoft.com/en-us/dotnet/api/microsoft.web.webview2.core.corewebview2.downloadstarting?view=webview2-dotnet-1.0.1056-prerelease

Otherwise, would you want me to open this as a feature request?

Hi @champnic,

Yes please open the feature request for it, I need it as well.

Thanks,
Tho

[vhphuocvo]

Thanks @viethuyphan for the clarification! Looks like that "harmful" detection is separate from SmartScreen. I haven't found a way or flag to turn it off.

If you are ok with hiding the UI altogether you can handle the DownloadStarting event. https://docs.microsoft.com/en-us/dotnet/api/microsoft.web.webview2.core.corewebview2.downloadstarting?view=webview2-dotnet-1.0.1056-prerelease

Otherwise, would you want me to open this as a feature request?

Hello @champnic ,

Yes please help to create this as a feature request asap, this's crictical for user when using WebView2, i also have the same problem with this protection dialog and can't work around to disable it.

Thanks
Phuoc

[champnic]

Thanks for the feedback - I've opened this as a scenario on our backlog!

[viethuyphan]

@champnic Do you have any updates on this topic?

[nishitha-burman]

Hi @viethuyphan, @sono-T, and @vhphuocvo, are there scenarios where you would like this dialog enabled?