Previous versions of ColdFusion, ie: pre-CFMX, generated the CFFORM validation JavaScripts on the fly. CFMX differs in that it now included in a seperate file "cfform.js" in the CFIDE/scripts folder.

Unfortunately you might, as I am, be using a shared hosting environment (often called "multi-homed" where, for good reason, the CFIDE folder is not accessible as a web folder in the usual way. Often the hosting provider will password protect the CFIDE folder our move it out of a web accessible folder altogether.

The same thing applies to the CFWDDX tag so if you are having a similar issue the fix is the same(ish).

Step 1:

Upload the CFFORM.JS file (located in your localhost/cfide/scripts folder) to your web site root.

Step 2:

In your "application.cfm" template add the following line of code. You may need to adjust the IP address but try 127.0.0.1 by default as this will usually work in a hosted environment anyway.

<cfparam name="Request.CFFORM_JS_Lib" type="string" default="http://127.0.0.1/cfform.js">

Make sure the CFFORM.JS file is located in your web site root or in a subdirectory (adjust the URL if needed).

Step 3:

Now replace your existing opening CFFORM tag with the following:

<cfform scriptsrc="#Request.CFFORM_JS_LIB#" ...>

The scriptsrc attribute is new to CFMX. Use the other CFFORM attributes (name, enctype, etc) as you normally would except that under CFMX the method="post" attribute has been deprecated and is no longer required except.

Your CFFORMs should now work as they always did previously and you will no longer receive embarrassing JS error alerts.