What would be the correct way to stop the white space that ColdFusion outputs?
I know there is cfcontent and cfsetting enableCFoutputOnly. What is the correct way to do that?
Answer
In addition to <cfsilent>, <cfsetting enablecfoutputonly="yes"> and <cfprocessingdirective suppressWhiteSpace = "true"> is <cfcontent reset="true" />. You can delete whitespaces at the beginning of your document with it.
HTML5 document would then start like this:
<cfcontent type="text/html; charset=utf-8" reset="true" /><!doctype html>
XML document:
<cfcontent reset="yes" type="text/xml; charset=utf-8" /><CFOUTPUT>#VariableHoldingXmlDocAsString#</CFOUTPUT>
This way you won't get the "Content is not allowed in prolog"-error for XML docs.
If you are getting unwanted whitespaces from a function use the output-attribute to suppress any output and return your result as string - for example:
<cffunction name="getMyName" access="public" returntype="string" output="no">
<cfreturn "Seybsen" />
</cffunction>