Complex settings, passing array in json notation

I'm trying to pass an array of objects to a setting value in json
notation with no avail:

<Setting name="someSetting" value="[{'propA':'1','propB':'2'},

This triggers the following error:

"Complex object types cannot be converted to simple values."

The error occurred in .coldbox\system\plugins\Utilities.cfc: line 147

145 : returnString = removeChars(returnString, lookup.pos[1],
146 : /* Insert Var Value */
147 : returnString = insert(varValue, returnString, lookup.pos
148 : }
149 : else{

Am I making a simple mistake, or is it not possible to pass an array
into a setting?



Well Eric have a look at
and scroll down to 'JSON notation for dynamic complex settings'