ColdFusion can return HTTP status code 500 when an error occurs, but don't use this option on development machines (or if you ever want to see the actual error message text). The "Enable HTTP status codes" option is on the Settings page in the ColdFusion Administrator. (Applies to: ColdFusion MX)
Creating Web Services using ColdFusion CFC's? Great, until you try to update the definition of an existing Web Service (something you should not do too often). If ColdFusion throws errors that don't seem to make sense, you might need to remove the Web Service from the Active ColdFusion Web Services...
Importing JSP tags with ? Be careful not to name the namespace "CF" as that is reserved for ColdFusion's own Custom Tags. (Applies to: ColdFusion MX)
ColdFusion MX supports double byte text, but avoid using double byte characters to name files. This will cause problems with links, , and other forms of file access. (Applies to: ColdFusion MX)
Prior to ColdFusion MX it was common practice to move the ColdFusion Administrator from its default directory to provide additional security. ColdFusion MX requires that the Administrator be in its default location, and so for extra security protect the CFIDE/administrator directory structure...
If client requests are of a different codepage then your CFM files use the tag to specify the character encoding to use. (Applies to: ColdFusion MX)
ColdFusion MX runs on underlying Java, and so the JVM and its settings are really important. For this reason the JVM configuration file is backed up each time you save changes in the Java and JVM Settings page in ColdFusion Administrator. You can restore these settings as needed. (Applies to:...
To read and write localized file be sure to specify the encoding to be used in the tags ENCODING attribute. (Applies to: ColdFusion MX)
ColdFusion Components (and their functions and arguments) may have underscores in their names, but Web Services shouldn't. So, just to be safe, don't use any non-alphanumeric characters in names in your CFC's, just in case you opt to make them accessible as Web Services at a later date. (Applies...
ColdFusion uses CFID and CFTOKEN to uniquely identify sessions, CFID is an incremental number and CFTOKEN is a random number (the combination of which make a unique session). CFTOKEN values may not be unique (CFID always will be) - but for added safety you can make CFTOKEN unique too by checking...