[Problem/Bug]: Xeroxed documents appear blank when navigated to in a Windows Forms App #5483
Description
What happened?
As of 12/15/2025, it was noticed that certain pdf documents created using Xerox photocopy began to appear blank when opened using WebView2 within our Windows Forms Application. These same documents appeared correctly in Microsoft Edge, and I confirmed that both are using version 143.0.3650.96 of the WebView2 Runtime.
I also went about confirming that using a previous fixed runtime solved the issue. The problem was not present when using version 142.0.3595.94.
There doesn't seem to be any code detection of something going wrong, as I created methods that fired in the case of a CoreWebView2.ProcessFailed event and NavigationCompleted. The ProcessFailed event never fired, and Navigation Completed comes back as successful.
We also noticed that text added to editable fields using certain pdf tools also would not render when the file was navigated to.
Importance
Important. My app's user experience is significantly compromised.
Runtime Channel
Stable release (WebView2 Runtime)
Runtime Version
143.0.3650.96
SDK Version
No response
Framework
Winforms
Operating System
Windows 11
OS Version
Version 10.0.26200 Build 26200
Repro steps
Call CoreWebView2.Navigate(path); where path is the address of a pdf created using a scan of physical media (Xerox in our case). The pdf will render as a blank page within the WebView2 control.
Repros in Edge Browser
No, issue does not reproduce in the corresponding Edge version
Regression
Regression in newer Runtime
Last working version (if regression)
142.0.3595.94