If you open the ‘Configuration’ tool, you will find ‘enable_cors’ under ‘httpd’. You want to change that value to ‘true’.
Next, if you scroll down to the bottom of the page, you will find an ‘Add a new section’ link. You want to click on that and add an ‘origins’ option with the value of ‘*’ in the ‘cors’ section. You can set the ‘origins’ value to an actual URL but this will enable CORS for everybody.
I would like to give a ‘tip of the hat’ to RichITExperience for having this answer. It looks like nobody else had any good info about this.