[Problem/Bug]: WebView2 Version 144.0.3719.82 Fails to Support #page=index Navigation for Encrypted PDFs

[suki-lqh]

What happened?

When using WebView2 as a PDF previewer in WinUI3, after upgrading the PC's Edge browser to the latest version 144.0.3719.82, it becomes impossible to navigate to specific pages of encrypted PDFs via the #page=index method. This function worked properly in version 140.0.3485.54.

In addition, specifying a WebView2 version is not feasible in WinUI3. Even when I copy the 140.0.3485.54 runtime environment locally, I cannot force the application to use this version by either setting environment variables via Environment.SetEnvironmentVariable or specifying the local runtime path through the CoreWebView2Environment.CreateWithOptionsAsync method.

Importance

Important. My app's user experience is significantly compromised.

Runtime Channel

Stable release (WebView2 Runtime)

Runtime Version

144.0.3719.82

SDK Version

144.0.3719.82

Framework

WinUI3/WinAppSDK

Operating System

Windows 11

OS Version

26200.7623

Repro steps

1. Create a WinUI3 application.
2. Use WebView2 to open an encrypted PDF (with read-only access, no additional decryption required for reading).
3. Append the hash tag #page=index when opening the PDF file.
4. It is required to upgrade the Edge browser to the latest version 144.0.3719.82.
5. Upgrade the operating system to the latest version 26200.7623.
6. Run WinUI3 application

Repros in Edge Browser

Yes, issue can be reproduced in the corresponding Edge version

Regression

Regression in newer Runtime

Last working version (if regression)

140.0.3485.54

AB#60843628

[navneetrathi-msft]

Hello @suki-lqh,
Tried on both Edge and winui3. It is working as expected.
Can you please share a sample repro.
You can take sample from here - https://github.com/MicrosoftEdge/WebView2Samples/tree/main/SampleApps/WebView2APISample

[suki-lqh]

Hello @suki-lqh, Tried on both Edge and winui3. It is working as expected. Can you please share a sample repro. You can take sample from here - https://github.com/MicrosoftEdge/WebView2Samples/tree/main/SampleApps/WebView2APISample

Hi @navneetrathi-msft
I have reproduced this issue on my PC using 'WebView2APISample-WebView2_WinUI3_Sample'. I would like to upload the PDF file, but I do not have Git permissions.

Can you see my attachment?

Pearl20 Win11 ENG online manual Final V01_0108.pdf

[navneetrathi-msft]

Yes, I can download and confirm it is an issue.

[suki-lqh]

@navneetrathi-msft
Do you have any fix plan? Or when the fix plan can be provided? thx.