Try the rule with /s on the end of the re. That will tend to turn newlines into spaces.
Loren, that should be redundant in any "body" or "uri" rule. SA already does that conversion to the whole body to save doing it repeatedly for every body rule in the ruleset (generally most body rules would want this)
The only time you should want to use the /s or /m modifier to a regex rule in SA is in a header, full, or rawbody rule.
