add b64 header to jwks verify

Author: Cloud11PL

src/verify-signature.ts

@@ -52,6 +52,9 @@ export const verifySignatureWithJwks = async (jwks: string, signature: string, r
     protected: header,
     payload: rawBody,
     signature: jwsSignature,
+    header: {
+      b64: true,
+    },
   };
 
   let localJwks: jose.FlattenedVerifyGetKey;