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c#fiddlerfiddlercore

How to manually set upstream proxy for fiddler core?

I'd like to be able to redirect http requests from fiddler code through upstream proxys, which I want to be able to specify at runtime.

I've looked through FiddlerApplication functions, and I don't see anything that might fit, as well as I haven't found anything matching in the documentation (except that you might specify a startup flag to use system's proxy as upstream proxy).

What is the best way to specify/change fiddler core proxy at runtime?

Solution

  • If you want to send each request to a proxy, and that proxy isn't the system's default: Before each request is sent, specify the X-OverrideGateway flag on the Session. Inside your BeforeRequest handler, add the following line:

    oSession["X-OverrideGateway"] = "someProxy:1234";

    -Eric