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haga-rak / fluxzy.core

Fast and fully streamed Man-On-The-Middle engine and a CLI app to intercept, record and alter HTTP/1.1, H2, websocket traffic over plain or secure channels.
https://docs.fluxzy.io
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WebSockets sometimes (most of the time) don't work #265

Closed Groovin-Dev closed 3 months ago

Groovin-Dev commented 3 months ago

Describe the bug Any use of Fluxzy as a proxy seems to break some WebSocket connections.

Describe the tool and the environment I have had the issue with Fluxzy.Core and Fluxzy.Desktop

To Reproduce Steps to reproduce the behavior:

  1. Run Fluxzy.Desktop or Fluxzy.Core (with nothing custom)
  2. Go to https://echo.websocket.org/.ws
  3. You will notice that it's unable to connect. image
  4. Disconnect the proxy and refresh image

Screenshot Seems like it's not marking the connection as WS even though it is. image

Expected behavior WebSockets should just work like they usually do and the information should be captured. With Fiddler (The desktop version and FiddlerCore) everything works

Additional context Probably related to https://github.com/haga-rak/fluxzy.core/issues/221

haga-rak commented 3 months ago

Thank you for taking the time to provide feedback. I was able to reproduce the issue easily with what you provided.

There is a fix available for Fluxzy.Core in the latest alpha version on nuget.org (currently validating 1.26.2-alpha). This will likely be merged into the next main version after further testing.

If you wish to have the fix early in Fluxzy Desktop, you can overwrite the Fluxzy.Core DLL in the application data; it's currently using the stock version.