Notice, in the figure below, that the commands executed by the PCS4 in response to SSI references have been replied to, and were implemented when the web page was served to the browser.
Figure 28. Browser View of Previous HTML Source Code
URL Encoding
URL (Universal Resource Locator) encoding is a method of using ASCII hexadecimal characters to display specific characters in a URL. It is used for several reasons. On some operating systems, certain characters are unsafe or not available, and others are reserved by the HTML or URL specification. URL encoding is used to insure compatibility and functionality with most Internet browsers. As a general rule, use the hexadecimal encoding method shown below when these characters appear in your URLs.
The following types of characters do not require encoding in a URL:
alphanumerics
special characters
reserved characters
$ _ _ . + ! * ( ) ,
; / ? : @ = &
When used for their reserved purposes, these characters do not require encoding within a URL.
Figure 29. Characters that Do Not Require Encoding
IPL T PCS4 • HTML Configuration and Control 37
