.NET - 1.0.707-prerelease WebView2 doesn't load any page when using WebView2 Runtime

[lucapivato]

Description
Doesn't work.

Version
WebView2: 1.0.707-prerelease, 1.0664.37.0
Edge: 87.0.664.47
Windows: 10

Repro Steps

• New WinForms project
• Add WebView2 NuGet
• Drop WebViewer2 control on form
• Set webView21.Source to "https://google.com" in designer (or in code, doesn't matter)

Screenshots

[jakasi2]

Identical setup works for me.

Edge Browser 87.0.664.47 64-bit
WebView2 Runtime 87.0.664.47
NuGet Microsoft.WebView2 1.0664.37.0
Windows 10 Home 20H2
Microsoft Visual Studio Community 2019 v16.8.2

[lucapivato]

Weird. Also enabled all exceptions in VS but nothing is thrown. Tried all sorts of combinations. Always blank. Will try on a different machine.

[dmcgloin]

I've seen this happen starting with 1.0.707-prerelease.
For me, it happens approximately 1 in 4 times.

[jakasi2]

I tried 1.0.707-prerelease and it also causes problems. For me it happens all the time.
1.0.674-prerelease and 1.0.664.37 works for me with respect to this glitch.

[champnic]

Hey all - thanks for these reports! I believe the issue you're running into is a compatibility bug between the new prerelease package and latest runtime. We've got a fix in the works now, and are potentially going to deprecate 707-prerelease and release a new prerelease package soon. This should only affect the prerelease package.

Workaround
In the meantime, please continue to use 1.0.674-prerelease package, or use Canary/Dev Edge instead of the WebView2 runtime.

[cppchuff]

I have tried 1.0.721, 1.0.664 and 1.0.674 in .NET Framework4.6.2 and 4.8. It doesn't load any page. I think it may be caused VS2019. I do the same things according #431, it doesn't work.

[dmcgloin]

Still happening for me with 1.0.721-prerelease. Note that resizing the containing window just slightly will resolve the issue.