diff --git a/omod/src/main/java/org/openmrs/module/spa/SpaController.java b/omod/src/main/java/org/openmrs/module/spa/SpaController.java
index 2f97a91..76b16dd 100644
--- a/omod/src/main/java/org/openmrs/module/spa/SpaController.java
+++ b/omod/src/main/java/org/openmrs/module/spa/SpaController.java
@@ -49,7 +49,7 @@ public class SpaController {
     public ResponseEntity<Resource> getStaticFileWithoutCacheHeaders(@PathVariable String filename) {
         FileSystemResource resource = (FileSystemResource) resourceLoader.getResource("/" + filename);
         if (resource.exists()) {
-            MediaType mediaType = filename.equalsIgnoreCase("service-worker") ? MediaType.parseMediaType("text/javascript") : MediaType.APPLICATION_JSON;
+            MediaType mediaType = filename.endsWith(".js") ? MediaType.parseMediaType("text/javascript") : MediaType.APPLICATION_JSON;
 
             return ResponseEntity.ok()
                     .cacheControl(CacheControl.noCache().mustRevalidate())