7. The method of claim 2 , wherein the mode is performance test mode.
2. The method of claim 1 , further comprising: at the processor: receiving the source file for preprocessing, wherein the source file comprises source code and is written in the client-side scripting language; parsing the source file and identifying directive information for the preprocessed directive within the source code of the source file, wherein the directive information comprises: data on the at least the portion of the client-side scripting language file and a mode; and wherein the step of creating comprises: creating the version of the source file for the mode that comprises: the source code from the source file and the at least the portion of the client-side scripting language file.