cors issue fixed

BackEnd/src/classes/Response.class.php

@@ -63,7 +63,7 @@ class Response
         header("Content-Type: application/json; charset=UTF-8");
 
         // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Allow-Methods
-        header("Access-Control-Allow-Methods: GET,POST,PUT,DELETE");
+        header("Access-Control-Allow-Methods: GET,POST,PUT,DELETE,PATCH,OPTIONS");
 
         header("Access-Control-Max-Age: 3600"); // Maximum number of seconds the results can be cached.
 

BackEnd/src/index.php

@@ -14,6 +14,12 @@
 
     // Reify the current request
     $request = Request::getCurrentRequest();
+
+    // To deal with CORS issues
+    if ($request->getHttpMethod() === 'OPTIONS') {
+        Response::okResponse()->send();
+    }
+    
     Response::interceptEchos();
 
     try {