This figure shows a JESI codeblock tag scenario. In this example, the page consists of the following:

1. A first block of template code that includes a codeblock tag that is set to specify execution of the code block only when a fragment is requested
2. A fragment
3. A second block of template code

The figure shows what happens in the situation where the template is requested. All of the template is processed except for the code block. The fragment is skipped.