Modifying a Request or Response - Fiddler Classic

Modifying a Request or Response To make custom changes to web requests and responses, use FiddlerScript to add rules to Fiddler's OnBeforeRequest or OnBeforeResponse function. Which function is appropriate depends on the objects your code uses: OnBeforeRequest is called before each request, and OnBeforeResponse is called before each response. Note: It is not possible to access the response objects