File Download Issue in WebView2 New Windows After Recent Edge Updates

Dear Microsoft WebView2 Team,

I am developing a desktop application using the WebView2 Runtime, where I embed a browser window within the application. Following recent Microsoft Edge updates, I have encountered an issue related to file downloads in newly opened tabs within the WebView2 control.

Specifically, when a new tab is opened and a file download is initiated, the file appears to be downloaded with a .tmp extension and is not properly renamed or finalized. This behavior does not occur in older versions of Edge, such as version 105.0.1343.42, where the download process works as expected. Unfortunately, I am unable to determine the exact version where this issue began.

I kindly request your assistance in reviewing this behavior. If this is a known issue or if there is a recommended workaround or update, your guidance would be greatly appreciated.

Additionally, I would like to report this issue through the appropriate support channels. If there is a preferred method or platform for reporting such runtime issues (e.g., GitHub repository, Microsoft Q&A, etc.), please advise.

Thank you for your attention and support.

Sincerely