Problem: ColdFusion cannot correctly decode the contents of your form submission.

The method attribute in forms sent to the ColdFusion server must be Post, for example:

<form action="test.cfm" method="Post">

Problem: The browser complains or does not send the full URL string when you include spaces in URL parameters.

Some browsers automatically replace spaces in URL parameters with the %20 escape sequence, but others might display an error or just send the URL string up to the first character (as does Netscape 4.7).

URL strings cannot have embedded spaces. Use a plus sign (+) or the standard HTTP space character escape sequence, (%20) wherever you want to include a space. ColdFusion correctly translates these elements into a space.

A common scenario in which this error occurs is when you dynamically generate your URL from database text fields that have embedded spaces. To avoid this problem, include only numeric values in the dynamically generated portion of URLs.

Or, you can use the URLEncodedFormat function, which automatically replaces spaces with %20 escape sequences. For more information on the URLEncodedFormat function, see the CFML Reference.