Retrieves a list of compression encodings that the browser supports.
As of Content Server version 7.0, HTML files are compressed for delivery. GZIP compression is the default.
Returns a list of compression encodings as a comma-delimited string.
As information output on a page or to a log:
HTTP_ACCEPT_ENCODING=gzip, deflate, compress;q=0.9
As part of an Idoc Script statement or evaluation:
<$if HTTP_ACCEPT_ENCODING$>
<!--statement-->