Using Fiddler, how do you identify if the submitted request failed or succeded?

Experience Level: Junior
Tags: FiddlerTools

Answer

Whenever a browser (client) submits a request to a server, the server should answer by sending a response back to the browser (client). The response sent by the server contains a status code that defines whether the request processing was successful or not.

  • The status code can be seen in the Session list.

When you double-click a request/response in the Session list, the request/response will be opened in the Inspector. You can use the following Response Inspector views:

  • Raw - this view displays the whole response that was received from the server
  • Headers - this view displays the response headers that were received from the server
  • HexView - this view displays the response that was received from the server in hexadecimal format (on the left) and plain-text format (on the right)

The status codes with number 4xx and 5xx mean error.

Comments

No Comments Yet.
Be the first to tell us what you think.
Fiddler for beginners
Fiddler for beginners

Are you learning Fiddler ? Try our test we designed to help you progress faster.

Test yourself