MicrosoftEdge / MicrosoftEdge/WebView2Feedback

After update to edge 108.0.1462.44 navigate to local file fails

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#3,032 4 comments 1 reaction 1 assignee View on GitHub

@LiangTheDev is already working on this.

Since Dec 8, 2022.

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Description

We have web forms in our c++ win32 application and we navigate into the file system in order to open a mini react frontend from index.html in specific folders (usually user temp folder) in order to show the web form (our application internal backend manages rest requests from react frontend to localhost and delivers data to frontend form).

Everything worked fine still today update to 108.0.1462.44. We get "ERR_FILE_NOT_FOUND" on webview.

We are debugging and the problem is on the url beeing opened: file://somefolders/index.html?port=8008
The port parameter is needed to reach the backend
Something encodes this url to file://somefolders/index.html%3fport=8008 that gets refused. It went fine up to yesterday webview

On Win10 and Win11

Customers report behaviour change after automatic update of Microsoft Edge.
What's changed?

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