You can
try editing the HTML.pm file found in the /calendarscript/lib directory. In the sub autoLink { subroutine, you can
try changing the following line:
$text =~ s#(^|\s)(http://\S*)#$1<A HREF="$2" $target>$2</A>#gs;
to something like:
$text =~ s#(^|\s)(http(s)?://\S*)#$1<A HREF="$2" $target>$2</A>#gs;
This code is un-tested, use at your own risk and always keep a backup of original file just in case.
Dan O.
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