I think you misunderstand what this does. This plugin only adds the required headers to requests served by wordpress. Your fints are a static asset so this plugin won´t effect them. What you want may be osible by editting your .htaccess
Home › Forums › LH Multisite CORS › Resolved - I activated and it doesn’t work › Reply To: I... https://lhero.org/?p=5030
Peter Shaw is the founder of the LocalHero project.