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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.
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
Figure 29.
Browser View of Previous HTML Source Code
0-9 a-z A-Z
$ _ _ . + ! * ( ) ,
; / ? : @ = &
When used for their reserved purposes, these
characters do not require encoding within a URL.
Characters that Do Not Require Encoding
IPL T PCS4 • HTML Configuration and Control
37
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