Use of Firefox plugin poster to initiate custom HTTP requests

When developing a Web application, it is often necessary to simulate the HTTP request and receive the server response to verify the correctness of the program.
Firefox plugin poster, can simulate various HTTP requests, and set the request parameters in detail, such as HTTP Header,parameter and so on.
The poster main interface is as follows:

The interface is simple and easy to start.
The following is a normal HTTP request that is handled as follows:

The response interface is as follows:

Hope poster tools, can bring you a happy programming experience!

Use of Firefox plugin poster to initiate custom HTTP requests