Variable undefined errors after upgrading to ColdFusion 2016 Update 12 and onwards

I have just discovered that the error disappears when you place the variable definitions outside the cfoutput tags. Which is the recommended way to code anyway. But this is not to absolve ColdFusion.

Examples:

<!--- Placed outside cfoutput tags --->
<cfset strAdminName = 'testName'/>

<CFOUTPUT>
<cfif strAdminName NEQ ''>
#objML.writePrompt('msgContactAdminWithContact', '?AdminName?', stcMLRej, {AdminName=strAdminName})#
<cfelse>
#objML.writePrompt('msgContactAdminNoContact', 'If you have a question regarding your username and password, contact your system administrator.', stcMLRej)#
</cfif>
</CFOUTPUT>

<!--- Second example ---> 

<cfset strAdminName = 'testName'/>

<cfif strAdminName NEQ ''>
<CFOUTPUT>#objML.writePrompt('msgContactAdminWithContact', '?AdminName?', stcMLRej, {AdminName=strAdminName})#</CFOUTPUT>
<cfelse>
<CFOUTPUT>#objML.writePrompt('msgContactAdminNoContact', 'If you have a question regarding your username and password, contact your system administrator.', stcMLRej)#</CFOUTPUT>
</cfif>


<!--- Third example is even better; it is in fact best-practice ---> 

<cfset strAdminName = 'testName'/>
<cfset myStruct = {AdminName=strAdminName}>
<cfif strAdminName NEQ ''>
<CFOUTPUT>#objML.writePrompt('msgContactAdminWithContact', '?AdminName?', stcMLRej, myStruct)#</CFOUTPUT>
<cfelse>
<CFOUTPUT>#objML.writePrompt('msgContactAdminNoContact', 'If you have a question regarding your username and password, contact your system administrator.', stcMLRej)#</CFOUTPUT>
</cfif>

As I understand it, everything is evaluated in an if/else statement; all of it, even the stuff that doesn't apply.  This should be fixable by using a switch/case instead of if/else.  The server iterates through the cases until it finds the one that matches, and then processes the code, and only that code.

But I'm a bit perplexed.  In your cfelse statement, there is no STRADMINNAME variable being called.  So removing the cfelse shouldn't "fix" this.

Have you filed a bug with TRACKER?

HTH,

^ _ ^