MicrosoftEdge / MicrosoftEdge/WebView2Feedback

[Problem/Bug]: Exception in async call from js bridge crashes application

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bug
Dominant language
PowerShell
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Forks
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Description

What happened?

I have to work with user provided network addresses, and when a fetch request fails with no status code, I try to find out a reason with a HttpClient in the .NET layer.
Sending a request there to a non-existent target causes the whole application to crash.
I already check for invalid ip-address and non-resolvable name, but sending a request (HEAD) to a port where nothing is listening also causes a crash I cannot recover from.

Importance

Moderate. My app's user experience is affected, but still usable.

Runtime Channel

Stable release (WebView2 Runtime)

Runtime Version

122.0.2365.59

SDK Version

1.0.2194-prerelease

Framework

WPF

Operating System

Windows 10

OS Version

10.0.19044

Repro steps

Sending the request to a valid ip address but the wrong port in a async method of the js bridge causes the crash every time.

Repros in Edge Browser

No, issue does not reproduce in the corresponding Edge version

Regression

Don't know

Last working version (if regression)

No response

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the closed-port request from an asynchronous JavaScript bridge method in the WPF WebView2 application, then trace how the .NET HttpClient exception crosses the bridge. The payload names no files or tests; done should mean the failed request no longer crashes the application and its error remains recoverable.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp, javascript
Domain
desktop
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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