diff --git a/be-reformable.js b/be-reformable.js
index 0d865c8..07218cf 100644
--- a/be-reformable.js
+++ b/be-reformable.js
@@ -124,12 +124,14 @@ class BeReformable extends BE {
          */
         const fetchOptions = {
             method,
-            headers: {
-                ...(headers || {}),
-
-            }
-            
+            headers
         };
+
+        if(headerFields !== undefined){
+            const {getHeaderFieldVals} = await import('./getHeaderFieldVals.js');
+            const headers = await getHeaderFieldVals(self);
+            Object.assign(fetchOptions.headers || {}, headers);
+        }
         
         enhancedElement.dispatchEvent(new BeFetchingEvent(url));
         return /** @type {PAP} */({
diff --git a/getHeaderFieldVals.js b/getHeaderFieldVals.js
index e624fba..ebbb391 100644
--- a/getHeaderFieldVals.js
+++ b/getHeaderFieldVals.js
@@ -7,7 +7,7 @@
      */
     export async function getHeaderFieldVals(self){
         /**
-         * @type {{[key: string]: string}}
+         * @type {HeadersInit}
          */
         const headerFieldVals = {};
         const {headerFields, enhancedElement} = self;