HybridWebView needs a consistent and usable story for handling C# methods that throw exceptions

[mattleibow]

Description

Right now HybridWebView invocation of C# methods can hide exceptions thrown by the user code. At an absolute minimum this needs to be logged via .NET MAUI's loggers and/or the webview loggers (JS console.log(), etc.). But some of these exceptions should likely bubble up to the caller in an appropriate manner.

For example if JS calls C# code and the C# code fails, then that C# failure should be bubbled back up to the JS caller as an exception so that it can be caught/handled in a try-catch.

Steps to Reproduce

No response

Link to public reproduction project repository

No response

Version with bug

9.0.21 SR2.1

Is this a regression from previous behavior?

No, this is something new

Last version that worked well

No response

Affected platforms

iOS, Android, Windows, macOS

Affected platform versions

No response

Did you find any workaround?

No response

Relevant log output

[similar-issues-ai]

We've found some similar issues:

• HybridWebView needs a consistent and usable story for handling C# and JS methods that throw exceptions #26768 , similarity score: 99%

If any of the above are duplicates, please consider closing this issue out and adding additional context in the original issue.

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