Bug with CF serializeJSON and CF implicit type conversion that breaks things.

endpoint.cfm

<!--- content with header application/json comes through as binary --->
<cfoutput>
	#toString(getHttpRequestData().content)#
</cfoutput>

request.cfm

<cfscript>
	endpointURL = "http://localhost:3000/endpoint.cfm"; //change this to your localhost/environment
	public function bugRequest () {
		var httpService = new http();
		httpService.setMethod("post");
		// post to the url of your endpoint.cfm
		httpService.setURL(endpointURL);

		var body = StructNew();
		body["cid"] = "245672e4"; // note that this is stored as a string
		scheduleBodyJSON =  serializeJSON(body);
		// removing the security prefix CF adds when it serializes JSON
		scheduleBodyJSON = Replace(scheduleBodyJSON, "//", "");

		httpService.addParam(type="header", name="Content-Type", value="application/json");
		httpService.addParam(type="body", value=scheduleBodyJSON);
		writeOutput(httpService.send().getPrefix().fileContent);
	}
	public function workingRequest () {
		var httpService = new http();
		httpService.setMethod("post");
		// post to the url of your endpoint.cfm
		httpService.setURL(endpointURL);

		var body = StructNew();
		body["cid"] = "72142984eh"; // note that this is stored as a string
		scheduleBodyJSON =  serializeJSON(body);
		// removing the security prefix CF adds when it serializes JSON
		scheduleBodyJSON = Replace(scheduleBodyJSON, "//", "");

		httpService.addParam(type="header", name="Content-Type", value="application/json");
		httpService.addParam(type="body", value=scheduleBodyJSON);
		writeOutput(httpService.send().getPrefix().fileContent);
	}
	bugRequest(); 
	workingRequest();
</cfscript>