MicrosoftEdge / MicrosoftEdge/WebView2Feedback

[Problem/Bug]: ShowSaveAsUI don't work with custom scheme

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PowerShell
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Description

What happened?

I am using a custom scheme to display a simple html page via
WebResourceRequested/IStream/CreateWebResourceResponse/put_Response.

The first problem : the "Save as" command is not available from the context menu
(same thing happen with the webview2APIsample -> scenario navigate to custom scheme via webResourceRequested).

Second problem : ShowSaveAsUI create a file BUT immediatly delete it
(same thing happen with the webview2APIsample -> navigate to custom scheme via webResourceRequested).

Importance

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

Runtime Channel

Stable release (WebView2 Runtime)

Runtime Version

134.0.3124.93

SDK Version

1.0.2739.15

Framework

Win32

Operating System

Windows 10

OS Version

19045.4412

Repro steps

webview2APIsample -> navigate to custom scheme via webResourceRequested

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

Contributor guide

No contributing guide indexed for this repository

First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Assessment

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