Explain the server-side include expansion.

1.	Explain the server-side include expansion.
Answer» Server-side inclusion (SSI) is a feature of a server in which a placeholder &LT;SERVLET&GT; TAG is also RETURNED. The <SERVLET> tag is then substituted by the corresponding servlet code. The server just parses the pages that are specially tagged, and it doesn’t parse and analyses each page it returns. The Java Web Server parses solely pages with a .shtml extension by default. With the SERVLET tag, in contrast to the APPLET tag, the client web browser doesn’t see anything between SERVLET and /SERVLET UNLESS SSI is not supported by the server.

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